Add Rodio audio pipeline as alternative to current LiveKit pipeline (#36607)

Rodio parts are well tested and need less configuration then the livekit
parts. I suspect there is a bug in the livekit configuration regarding
resampling. Rather then investigate that it seemed faster & easier to
swap in Rodio.

This opens the door to using other Rodio parts like:
 - Decibel based volume control
 - Limiter (prevents sound from becoming too loud)
 - Automatic gain control

To use this add to settings:
```
  "audio": {
    "experimental.rodio_audio": true
  }
```

Release Notes:

- N/A

Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Antonio Scandurra <me@as-cii.com>

crates/settings/src/settings_store.rs

@@ -60,6 +60,11 @@ pub trait Settings: 'static + Send + Sync {
 
     /// The logic for combining together values from one or more JSON files into the
     /// final value for this setting.
+    ///
+    /// # Warning
+    /// `Self::FileContent` deserialized field names should match with `Self` deserialized field names
+    /// otherwise the field won't be deserialized properly and you will get the error:
+    /// "A default setting must be added to the `default.json` file"
     fn load(sources: SettingsSources<Self::FileContent>, cx: &mut App) -> Result<Self>
     where
         Self: Sized;