Fix highlight inset not taking effect

[KoviRobi]

It was accidentally typoed in 32c4233 which moved it. This made it impossible to disable highlight-inset, and use highlight-outset instead.

-  let highlight-inset = (
-    __codly-args.highlight-inset.type_check
-  )(if "highlight-inset" in extra {
-    extra.highlight-inset
-  } else {
-    state("codly-highlight-inset", __codly-args.highlight-inset.default).get()
-  })
+  let highlight-inset = (
+    __codly-args.highlight-inset.type_check
+  )(if "highlight-inset" in extra {
+    extra.highlight-inset
+  } else {
+    state("highlight-inset", __codly-args.highlight-inset.default).get()
+  });

I have updated the test to make it more obvious what it is testing

Feel free to not take the whitespace clean commit -- my editor does it automatically and it's easiest to throw away (and review) if I do it in a separate commit (and if it's the first, it means I can edit later and then will only throw it away as the last thing).

[Dherse]

Ugh what a stupid bug, thanks a lot! I need to do a double check over all of the states that they're correct eventually 😭

[Dherse]

Thank you very much! 🎉