This commit updates the project name across various files to reflect the new branding.
- Changed the root project name in `settings.gradle.kts` from "Revolt" to "PepChat".
- Updated the project name in the `.idea/.name` file to "PepChat".
- Modified `ChatRouterScreen` to use a `Box` layout instead of `Column` for better UI structure.
- Adjusted the `SettingsScreen` to utilize `LargeTopAppBar` for improved design consistency.
- Removed unnecessary size specification in `ChannelScreen` for better visual clarity.
50e836b974
