Add manage mode to space view for removing child rooms, wip.

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

@@ -23,6 +23,7 @@ class FakeSpaceService(
     private val joinedSpacesResult: () -> Result<List<SpaceRoom>> = { lambdaError() },
     private val spaceRoomListResult: (RoomId) -> SpaceRoomList = { lambdaError() },
     private val leaveSpaceHandleResult: (RoomId) -> LeaveSpaceHandle = { lambdaError() },
+    private val removeChildFromSpaceResult: (RoomId, RoomId) -> Result<Unit> = { _, _ -> lambdaError() },
 ) : SpaceService {
     private val _spaceRoomsFlow = MutableSharedFlow<List<SpaceRoom>>()
     override val spaceRoomsFlow: SharedFlow<List<SpaceRoom>>
@@ -43,4 +44,8 @@ class FakeSpaceService(
     override fun getLeaveSpaceHandle(spaceId: RoomId): LeaveSpaceHandle {
         return leaveSpaceHandleResult(spaceId)
     }
+
+    override suspend fun removeChildFromSpace(spaceId: RoomId, childId: RoomId): Result<Unit> = simulateLongTask {
+        removeChildFromSpaceResult(spaceId, childId)
+    }
 }