Merge LocalMediaInputs into MatrixRTCClientOptions

The SDK now takes `publish` requests and audio output control directly
in the main options object, removing the separate `LocalMediaInputs`
type. Audio output device selection moves from a reactive behavior to an
imperative method on `MatrixRTCClient`, giving hosts direct control over
when devices switch.

sdk/README.md

@@ -19,7 +19,6 @@ Call's own `CallViewModel` is built on it. It depends on nothing in Element Call
 
 ```ts
 import {
-  constant,
   createMatrixRTCClient,
   E2eeType,
   MatrixRTCMode,
@@ -31,13 +30,10 @@ const rtcClient = createMatrixRTCClient(
   scope,
   client, // a matrix-js-sdk MatrixClient, logged in and syncing
   room, // the matrix-js-sdk Room, from client.getRoom() once the join has synced
-  {
-    publish: [{ source: "microphone" }, { source: "camera" }],
-    audioOutputDeviceId$: constant(undefined),
-  },
   {
     encryptionSystem: { kind: E2eeType.PER_PARTICIPANT },
     matrixRTCMode: MatrixRTCMode.Compatibility,
+    publish: [{ source: "microphone" }, { source: "camera" }],
   },
 );
 rtcClient.join();