diff --git a/package-lock.json b/package-lock.json
index a9ea7de..b38734f 100644
--- a/package-lock.json
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       "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-nullish-coalescing-operator/-/plugin-proposal-nullish-coalescing-operator-7.10.4.tgz",
@@ -3619,16 +3304,6 @@
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       }
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-    "@babel/plugin-proposal-numeric-separator": {
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-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-numeric-separator/-/plugin-proposal-numeric-separator-7.10.4.tgz",
-      "integrity": "sha512-73/G7QoRoeNkLZFxsoCCvlg4ezE4eM+57PnOqgaPOozd5myfj7p0muD1mRVJvbUWbOzD+q3No2bWbaKy+DJ8DA==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4",
-        "@babel/plugin-syntax-numeric-separator": "^7.10.4"
-      }
-    },
     "@babel/plugin-proposal-object-rest-spread": {
       "version": "7.11.0",
       "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.11.0.tgz",
@@ -3661,16 +3336,6 @@
         "@babel/plugin-syntax-optional-chaining": "^7.8.0"
       }
     },
-    "@babel/plugin-proposal-private-methods": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-private-methods/-/plugin-proposal-private-methods-7.10.4.tgz",
-      "integrity": "sha512-wh5GJleuI8k3emgTg5KkJK6kHNsGEr0uBTDBuQUBJwckk9xs1ez79ioheEVVxMLyPscB0LfkbVHslQqIzWV6Bw==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-create-class-features-plugin": "^7.10.4",
-        "@babel/helper-plugin-utils": "^7.10.4"
-      }
-    },
     "@babel/plugin-proposal-unicode-property-regex": {
       "version": "7.10.4",
       "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.10.4.tgz",
@@ -3690,15 +3355,6 @@
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       }
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-    "@babel/plugin-syntax-class-properties": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-class-properties/-/plugin-syntax-class-properties-7.10.4.tgz",
-      "integrity": "sha512-GCSBF7iUle6rNugfURwNmCGG3Z/2+opxAMLs1nND4bhEG5PuxTIggDBoeYYSujAlLtsupzOHYJQgPS3pivwXIA==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4"
-      }
-    },
     "@babel/plugin-syntax-dynamic-import": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-dynamic-import/-/plugin-syntax-dynamic-import-7.8.3.tgz",
@@ -3708,15 +3364,6 @@
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       }
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-    "@babel/plugin-syntax-export-namespace-from": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-export-namespace-from/-/plugin-syntax-export-namespace-from-7.8.3.tgz",
-      "integrity": "sha512-MXf5laXo6c1IbEbegDmzGPwGNTsHZmEy6QGznu5Sh2UCWvueywb2ee+CCE4zQiZstxU9BMoQO9i6zUFSY0Kj0Q==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.8.3"
-      }
-    },
     "@babel/plugin-syntax-json-strings": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.8.3.tgz",
@@ -3726,15 +3373,6 @@
         "@babel/helper-plugin-utils": "^7.8.0"
       }
     },
-    "@babel/plugin-syntax-logical-assignment-operators": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-logical-assignment-operators/-/plugin-syntax-logical-assignment-operators-7.10.4.tgz",
-      "integrity": "sha512-d8waShlpFDinQ5MtvGU9xDAOzKH47+FFoney2baFIoMr952hKOLp1HR7VszoZvOsV/4+RRszNY7D17ba0te0ig==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4"
-      }
-    },
     "@babel/plugin-syntax-nullish-coalescing-operator": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-nullish-coalescing-operator/-/plugin-syntax-nullish-coalescing-operator-7.8.3.tgz",
@@ -3744,15 +3382,6 @@
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       }
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-    "@babel/plugin-syntax-numeric-separator": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-numeric-separator/-/plugin-syntax-numeric-separator-7.10.4.tgz",
-      "integrity": "sha512-9H6YdfkcK/uOnY/K7/aA2xpzaAgkQn37yzWUMRK7OaPOqOpGS1+n0H5hxT9AUw9EsSjPW8SVyMJwYRtWs3X3ug==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4"
-      }
-    },
     "@babel/plugin-syntax-object-rest-spread": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.8.3.tgz",
@@ -4392,15 +4021,6 @@
         "@babel/helper-plugin-utils": "^7.10.4"
       }
     },
-    "@babel/plugin-transform-unicode-escapes": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-unicode-escapes/-/plugin-transform-unicode-escapes-7.10.4.tgz",
-      "integrity": "sha512-y5XJ9waMti2J+e7ij20e+aH+fho7Wb7W8rNuu72aKRwCHFqQdhkdU2lo3uZ9tQuboEJcUFayXdARhcxLQ3+6Fg==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4"
-      }
-    },
     "@babel/plugin-transform-unicode-regex": {
       "version": "7.10.4",
       "resolved": "https://registry.npmjs.org/@babel/plugin-transform-unicode-regex/-/plugin-transform-unicode-regex-7.10.4.tgz",
@@ -4411,17 +4031,69 @@
         "@babel/helper-plugin-utils": "^7.10.4"
       }
     },
-    "@babel/preset-modules": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/@babel/preset-modules/-/preset-modules-0.1.4.tgz",
-      "integrity": "sha512-J36NhwnfdzpmH41M1DrnkkgAqhZaqr/NBdPfQ677mLzlaXo+oDiv1deyCDtgAhz8p328otdob0Du7+xgHGZbKg==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-plugin-utils": "^7.0.0",
-        "@babel/plugin-proposal-unicode-property-regex": "^7.4.4",
-        "@babel/plugin-transform-dotall-regex": "^7.4.4",
-        "@babel/types": "^7.4.4",
-        "esutils": "^2.0.2"
+    "@babel/preset-env": {
+      "version": "7.8.7",
+      "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.8.7.tgz",
+      "integrity": "sha512-BYftCVOdAYJk5ASsznKAUl53EMhfBbr8CJ1X+AJLfGPscQkwJFiaV/Wn9DPH/7fzm2v6iRYJKYHSqyynTGw0nw==",
+      "dev": true,
+      "requires": {
+        "@babel/compat-data": "^7.8.6",
+        "@babel/helper-compilation-targets": "^7.8.7",
+        "@babel/helper-module-imports": "^7.8.3",
+        "@babel/helper-plugin-utils": "^7.8.3",
+        "@babel/plugin-proposal-async-generator-functions": "^7.8.3",
+        "@babel/plugin-proposal-dynamic-import": "^7.8.3",
+        "@babel/plugin-proposal-json-strings": "^7.8.3",
+        "@babel/plugin-proposal-nullish-coalescing-operator": "^7.8.3",
+        "@babel/plugin-proposal-object-rest-spread": "^7.8.3",
+        "@babel/plugin-proposal-optional-catch-binding": "^7.8.3",
+        "@babel/plugin-proposal-optional-chaining": "^7.8.3",
+        "@babel/plugin-proposal-unicode-property-regex": "^7.8.3",
+        "@babel/plugin-syntax-async-generators": "^7.8.0",
+        "@babel/plugin-syntax-dynamic-import": "^7.8.0",
+        "@babel/plugin-syntax-json-strings": "^7.8.0",
+        "@babel/plugin-syntax-nullish-coalescing-operator": "^7.8.0",
+        "@babel/plugin-syntax-object-rest-spread": "^7.8.0",
+        "@babel/plugin-syntax-optional-catch-binding": "^7.8.0",
+        "@babel/plugin-syntax-optional-chaining": "^7.8.0",
+        "@babel/plugin-syntax-top-level-await": "^7.8.3",
+        "@babel/plugin-transform-arrow-functions": "^7.8.3",
+        "@babel/plugin-transform-async-to-generator": "^7.8.3",
+        "@babel/plugin-transform-block-scoped-functions": "^7.8.3",
+        "@babel/plugin-transform-block-scoping": "^7.8.3",
+        "@babel/plugin-transform-classes": "^7.8.6",
+        "@babel/plugin-transform-computed-properties": "^7.8.3",
+        "@babel/plugin-transform-destructuring": "^7.8.3",
+        "@babel/plugin-transform-dotall-regex": "^7.8.3",
+        "@babel/plugin-transform-duplicate-keys": "^7.8.3",
+        "@babel/plugin-transform-exponentiation-operator": "^7.8.3",
+        "@babel/plugin-transform-for-of": "^7.8.6",
+        "@babel/plugin-transform-function-name": "^7.8.3",
+        "@babel/plugin-transform-literals": "^7.8.3",
+        "@babel/plugin-transform-member-expression-literals": "^7.8.3",
+        "@babel/plugin-transform-modules-amd": "^7.8.3",
+        "@babel/plugin-transform-modules-commonjs": "^7.8.3",
+        "@babel/plugin-transform-modules-systemjs": "^7.8.3",
+        "@babel/plugin-transform-modules-umd": "^7.8.3",
+        "@babel/plugin-transform-named-capturing-groups-regex": "^7.8.3",
+        "@babel/plugin-transform-new-target": "^7.8.3",
+        "@babel/plugin-transform-object-super": "^7.8.3",
+        "@babel/plugin-transform-parameters": "^7.8.7",
+        "@babel/plugin-transform-property-literals": "^7.8.3",
+        "@babel/plugin-transform-regenerator": "^7.8.7",
+        "@babel/plugin-transform-reserved-words": "^7.8.3",
+        "@babel/plugin-transform-shorthand-properties": "^7.8.3",
+        "@babel/plugin-transform-spread": "^7.8.3",
+        "@babel/plugin-transform-sticky-regex": "^7.8.3",
+        "@babel/plugin-transform-template-literals": "^7.8.3",
+        "@babel/plugin-transform-typeof-symbol": "^7.8.4",
+        "@babel/plugin-transform-unicode-regex": "^7.8.3",
+        "@babel/types": "^7.8.7",
+        "browserslist": "^4.8.5",
+        "core-js-compat": "^3.6.2",
+        "invariant": "^2.2.2",
+        "levenary": "^1.1.1",
+        "semver": "^5.5.0"
       }
     },
     "@babel/runtime": {
@@ -7695,12 +7367,6 @@
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       "dev": true
     },
-    "esutils": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.3.tgz",
-      "integrity": "sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==",
-      "dev": true
-    },
     "etag": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
diff --git a/package.json b/package.json
index baf8d88..88b175e 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "@angular/cdk": "^8.2.3",
     "@angular/common": "~8.2.9",
     "@angular/compiler": "~8.2.9",
-    "@angular/core": "~8.2.9",
+    "@angular/core": "~11.0.5",
     "@angular/forms": "~8.2.9",
     "@angular/http": "~7.2.14",
     "@angular/platform-browser": "~8.2.9",