Asynchronously connect to media3 controllers

[nift4]

In order to migitate an ANR on a slow device:

      at android.os.BinderProxy.transactNative (Native method)
This binder call may be taking too long, causing the main thread to wait and triggering the ANR. [Learn more](https://developer.android.com/topic/performance/anrs/find-unresponsive-thread#slow-binder)
      at android.os.BinderProxy.transact (BinderProxy.java:590)
      at android.app.IActivityManager$Stub$Proxy.bindIsolatedService (IActivityManager.java:6868)
      at android.app.ContextImpl.bindServiceCommon (ContextImpl.java:2140)
      at android.app.ContextImpl.bindService (ContextImpl.java:2037)
      at android.content.ContextWrapper.bindService (ContextWrapper.java:827)
      at androidx.media3.session.MediaControllerImplBase.requestConnectToService (MediaControllerImplBase.java:2559)
      at androidx.media3.session.MediaControllerImplBase.connect (MediaControllerImplBase.java:216)
      at androidx.media3.session.MediaController.<init> (MediaController.java:612)
      at androidx.media3.session.MediaController$Builder.buildAsync (MediaController.java:378)
      at org.akanework.gramophone.ui.MediaControllerViewModel.onStart (MediaControllerViewModel.kt:50)
      at androidx.lifecycle.DefaultLifecycleObserverAdapter.onStateChanged (DefaultLifecycleObserverAdapter.kt:25)