ClearChat Home v1.4.6

Fixes:
- Public widget color now supports fallback when the embed script is accidentally loaded from /clearchat/clearchat/embed.js.
- All public widget API calls use the same detected app root after settings load.
- Update page now redirects/refreshes after applying a patch so the newest version/assets display without manual refresh.
- Version bumped to 1.4.6-home.

Apply through the ClearChat Update page.
