feat: camera quality settings, audio processing toggles, config-seeded defaults

- Add camera video quality controls (resolution/framerate/bitrate/codec)
  to Settings > Video, mirroring the screen share settings UI
- Add audio processing toggles (echo cancellation, noise suppression,
  auto gain control) to Settings > Audio, replacing URL-param-only controls
- Display raw values inline on all sliders (framerate, bitrate, volume)
- Add config-seeded defaults: config.json media_quality values now seed
  Setting defaults for users who haven't explicitly set preferences
- Camera settings are applied when joining a call via ConnectionFactory

Signed-off-by: Ryan Emmick <ryanemmick4@gmail.com>

src/state/CallViewModel/CallViewModel.ts

@@ -488,8 +488,6 @@ export function createCallViewModel$(
       livekitKeyProvider,
       getUrlParams().controlledAudioDevices,
       options.livekitRoomFactory,
-      getUrlParams().echoCancellation,
-      getUrlParams().noiseSuppression,
     );
 
   const connectionManager = createConnectionManager$({