ClearChat Home v1.4.1

Fixes:
- Palette selections now update the Custom Widget Color field immediately.
- Palette selections now update the Live Preview immediately.
- Custom hex color entry now updates the Live Preview while typing a valid hex color.
- Save Settings now uses the visible Custom Widget Color field as the source of truth, with palette fallback if JavaScript is unavailable.
- Version bumped to 1.4.1-home.

After patching:
1. Hard-refresh the admin settings page.
2. Pick a palette color or enter a custom hex color.
3. Confirm the Live Preview changes instantly.
4. Click Save Settings.
5. Hard-refresh the public website page with Ctrl+F5 if the old embedded widget is cached.
