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>

features/knockrequests/impl/src/main/kotlin/io/element/android/features/knockrequests/impl/data/di/KnockRequestsBindingContainer.kt

@@ -6,7 +6,7 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-package io.element.android.features.knockrequests.impl.data
+package io.element.android.features.knockrequests.impl.data.di
 
 import dev.zacsweers.metro.BindingContainer
 import dev.zacsweers.metro.ContributesTo
@@ -14,6 +14,7 @@ import dev.zacsweers.metro.Provides
 import dev.zacsweers.metro.SingleIn
 import io.element.android.features.knockrequests.api.KnockRequestPermissions
 import io.element.android.features.knockrequests.api.knockRequestPermissions
+import io.element.android.features.knockrequests.impl.data.KnockRequestsService
 import io.element.android.libraries.di.RoomScope
 import io.element.android.libraries.matrix.api.room.JoinedRoom
 import io.element.android.libraries.matrix.api.room.powerlevels.permissionsFlow
@@ -23,7 +24,7 @@ import io.element.android.libraries.matrix.api.room.powerlevels.permissionsFlow
 object KnockRequestsBindingContainer {
     @Provides
     @SingleIn(RoomScope::class)
-    fun knockRequestsService(room: JoinedRoom): KnockRequestsService {
+    fun providesKnockRequestsService(room: JoinedRoom): KnockRequestsService {
         return KnockRequestsService(
             knockRequestsFlow = room.knockRequestsFlow,
             permissionsFlow = room.permissionsFlow(KnockRequestPermissions.DEFAULT) { perms ->