Move all binding containers to a di package and normalize their method names

Every @BindingContainer now lives in a di subpackage, in a file named after
it. Containers that were declared inside a shared file (SimplePlayer.kt,
LockScreenConfig.kt, VoiceMessagePresenter.kt, TimelineItemPresenterFactories.kt,
MediaItemPresenterFactories.kt) are extracted into their own file.

Method names are made consistent too:
- @Binds functions are named bind<ConcreteParameterType>, fixing three that
  named something else (notably RoomAliasResolverBindingContainer, whose
  provider was still called providesJoinRoomPresenterFactory).
- @Provides functions are named after what they provide, and all use the
  provides prefix rather than a mix of provide and provides.

ANDROID_KEYSTORE moves back to the cryptography impl package, next to
KeyStoreSecretKeyRepository which uses it; it is not DI specific and would
otherwise be unreachable from there.

No behaviour change: Metro discovers containers via @ContributesTo and does
not care about method names, so the only call site to follow was in
DefaultVoiceRecorderTest.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

libraries/voicerecorder/impl/src/main/kotlin/io/element/android/libraries/voicerecorder/impl/di/VoiceRecorderBindingContainer.kt

@@ -24,7 +24,7 @@ import io.element.android.opusencoder.OggOpusEncoder
 @ContributesTo(RoomScope::class)
 object VoiceRecorderBindingContainer {
     @Provides
-    fun provideAudioConfig(): AudioConfig {
+    fun providesAudioConfig(): AudioConfig {
         val sampleRate = SampleRate
         return AudioConfig(
             format = AudioFormat.Builder()
@@ -40,7 +40,7 @@ object VoiceRecorderBindingContainer {
     }
 
     @Provides
-    public fun provideVoiceFileConfig(): VoiceFileConfig =
+    public fun providesVoiceFileConfig(): VoiceFileConfig =
         VoiceFileConfig(
             cacheSubdir = "voice_recordings",
             fileExt = "ogg",
@@ -48,5 +48,5 @@ object VoiceRecorderBindingContainer {
         )
 
     @Provides
-    fun provideOggOpusEncoder(): OggOpusEncoder = OggOpusEncoder.create()
+    fun providesOggOpusEncoder(): OggOpusEncoder = OggOpusEncoder.create()
 }

libraries/voicerecorder/impl/src/test/kotlin/io/element/android/libraries/voicerecorder/impl/DefaultVoiceRecorderTest.kt

@@ -151,7 +151,7 @@ class DefaultVoiceRecorderTest {
     }
 
     private fun TestScope.createDefaultVoiceRecorder(): DefaultVoiceRecorder {
-        val fileConfig = VoiceRecorderBindingContainer.provideVoiceFileConfig()
+        val fileConfig = VoiceRecorderBindingContainer.providesVoiceFileConfig()
         return DefaultVoiceRecorder(
             dispatchers = testCoroutineDispatchers(),
             timeSource = timeSource,