feat: Video Editor, Dynamic Region Selector, and Clock Quote Styling

[ukyas]

Summary

As discussed on Discord, this PR introduces 3 features/tweaks:

1. Post-recording Video Editor: Added a hook in record.sh. When wf-recorder is killed, it waits 1.5s, grabs the latest .mp4, and fires an IPC call to open VideoEditor.qml. Video trimming and processing run in the background via ffmpeg using process_video.sh.
2. Dynamic Region Selector: Ported the CursorGuide component. Action icons now follow the cursor dynamically, tied to Wayland mouseX/Y coordinates.
3. Clock Quote Styling: Added the MaterialSymbol quotes and refactored the rectangle padding for a cleaner look on the clock widget.

Testing

• inir restart && inir logs — no errors
• Tested the specific feature path that changed
• Both panel families checked (if shared code changed)

[snowarch]

Thanks @ukyas — nice work, and it boots clean here. A couple of things before merge:

• The diff carries ~25 trailing-whitespace lines (CookieQuote / region selector). Could you clean those up?
• Please confirm the record.sh hook degrades gracefully when wf-recorder/ffmpeg aren't installed.

Tracked on the board; will integrate once that's in.