- Add fullWidth prop to Layout component for chat pages
- Redesign EventChatPage and MatchChatPage with fixed layout:
- Navbar sticky to top (no gaps)
- Event/partner header directly below navbar
- Chat content fills available space (flex-1)
- Input area fixed to bottom
- Full screen width on mobile (no margins)
- Translate RecordingTab UI strings to English
- Move Leave Event button to header
- Remove unnecessary margins and max-width constraints
This provides a better mobile experience with full-screen chat
interface similar to native messaging apps.