Update theme: Deep Work Control

[stylebending]

Description

This PR updates the Deep Work Control theme.

Changes

• Config and CSS changes: Necessary for the added and removed widgets.
• Widgets: Reordered the grouped widgets, added the WiFi widget, removed the Taskbar widget, and made some color changes to icons.
• CSS cleanup: Cleaned up the CSS to use CSS variables mainly for color.
• Updated the image: Updated the image to correctly represent the new look.
• Description change: Removed the word "Clean" from the description as that is something subjective.

[amnweb]

This looks like a completely different theme. Why didn’t you submit it as a new one instead of editing the current theme?

[stylebending]

This looks like a completely different theme. Why didn’t you submit it as a new one instead of editing the current theme?

I mainly wanted to clean up the styles.css to use CSS variables everywhere.
I didn't know that icon color and border radius changes were enough to submit a new theme. Guess this theme can stay how it is. Should I close this PR?