Add shortcut suggestions for rooms, remove then when leaving (#5180)

* Report shortcut usage for outgoing messages

This patch adds support for creating and pushing dynamic
long-lived shortcuts for outgoing messages. This together
with an existing reference to the roomId used by the
shortcuts as an identifer allows conversations to be
prioritized.

See https://developer.android.com/training/sharing/direct-share-targets#report-usage-outgoing

* Simplify how to get the other user in a DM room

* Add initial avatar icons to shortcuts

* Remove room shortcuts when they're no longer joined

* Try using API 33 for the new tests. They worked locally with API 30, so it's weird the CI asks for a higher API version.

* Add observers for the pin code and session logout states. With this we can prevent new shortcuts from being created and remove existing ones when needed.

* Wrap all calls to `ShortcutManagerCompat` with `runCatchingExceptions` to avoid crashes

* Make `DefaultNotificationConversationService` a singleton.

---------

Co-authored-by: networkException <git@nwex.de>
Co-authored-by: ElementBot <android@element.io>

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/FakeMatrixClient.kt

@@ -94,6 +94,7 @@ class FakeMatrixClient(
     private val isLivekitRtcSupportedLambda: () -> Boolean = { false },
     override val ignoredUsersFlow: StateFlow<ImmutableList<UserId>> = MutableStateFlow(persistentListOf()),
     private val getMaxUploadSizeResult: () -> Result<Long> = { lambdaError() },
+    private val getJoinedRoomIdsResult: () -> Result<Set<RoomId>> = { Result.success(emptySet()) },
 ) : MatrixClient {
     var setDisplayNameCalled: Boolean = false
         private set
@@ -141,6 +142,10 @@ class FakeMatrixClient(
         return findDmResult
     }
 
+    override suspend fun getJoinedRoomIds(): Result<Set<RoomId>> {
+        return getJoinedRoomIdsResult()
+    }
+
     override suspend fun ignoreUser(userId: UserId): Result<Unit> = simulateLongTask {
         return ignoreUserResult(userId)
     }