Fix coroutine scope (#4820)

* Inject the session scope instead of the application scope where it's possible.

* Create AppCoroutineScope annotation to let developers explicitly choose the appropriate CoroutineScope when injecting one.

appnav/src/test/kotlin/io/element/android/appnav/JoinedRoomLoadedFlowNodeTest.kt

@@ -109,7 +109,7 @@ class JoinedRoomLoadedFlowNodeTest {
         messagesEntryPoint = messagesEntryPoint,
         roomDetailsEntryPoint = roomDetailsEntryPoint,
         appNavigationStateService = FakeAppNavigationStateService(),
-        appCoroutineScope = this,
+        sessionCoroutineScope = this,
         roomComponentFactory = FakeRoomComponentFactory(),
         matrixClient = FakeMatrixClient(),
         activeRoomsHolder = activeRoomsHolder,