Enable automatic back pagination and unread indicators by default (#7800)

* Enable automatic back pagination and unread indicators by default

We want to test these in the nightlies.

features/home/impl/src/test/kotlin/io/element/android/features/home/impl/roomlist/RoomListPresenterTest.kt

@@ -217,6 +217,10 @@ class RoomListPresenterTest {
         val presenter = createRoomListPresenter(client = client)
         presenter.test {
             val initialState = awaitItem()
+
+            // Skip intermediate event for loading the value of the `UnreadIndicatorCount` feature flag
+            skipItems(1)
+
             val summary = createRoomListRoomSummary()
             initialState.eventSink(RoomListEvent.ShowContextMenu(summary))
 
@@ -260,6 +264,10 @@ class RoomListPresenterTest {
         val presenter = createRoomListPresenter(client = client)
         presenter.test {
             val initialState = awaitItem()
+
+            // Skip intermediate event for loading the value of the `UnreadIndicatorCount` feature flag
+            skipItems(1)
+
             val summary = createRoomListRoomSummary()
             initialState.eventSink(RoomListEvent.ShowContextMenu(summary))
 
@@ -309,6 +317,10 @@ class RoomListPresenterTest {
         )
         presenter.test {
             val initialState = awaitItem()
+
+            // Skip intermediate event for loading the value of the `UnreadIndicatorCount` feature flag
+            skipItems(1)
+
             eventRecorder.assertEmpty()
             initialState.eventSink(RoomListEvent.ToggleSearchResults)
             eventRecorder.assertSingle(
@@ -398,6 +410,7 @@ class RoomListPresenterTest {
             client = matrixClient,
         )
         presenter.test {
+            skipItems(1) // Skip initial state
             assertThat(awaitItem().contentState).isInstanceOf(RoomListContentState.Empty::class.java)
         }
     }
@@ -616,7 +629,7 @@ class RoomListPresenterTest {
         )
         presenter.test {
             assertThat(announcementService.announcementsToShowFlow().first()).isEmpty()
-            skipItems(1)
+            skipItems(2) // Skip initial state and intermediate event for loading the value of the `UnreadIndicatorCount` feature flag
             val state = awaitItem()
             assertThat(state.contentAsRooms().showNewNotificationSoundBanner).isFalse()
             announcementService.emitAnnouncementsToShow(listOf(Announcement.NewNotificationSound))

libraries/featureflag/api/src/main/kotlin/io/element/android/libraries/featureflag/api/FeatureFlags.kt

@@ -121,14 +121,14 @@ enum class FeatureFlags(
         title = "Automatic back pagination of rooms",
         description = "Allow the app to automatically back paginate in rooms to pre-fetch older messages in background." +
             "\nRequires an app restart to take effect.",
-        defaultValue = { false },
+        defaultValue = { true },
         isFinished = false,
     ),
     UnreadIndicatorCount(
         key = "feature.unread_indicator_count",
         title = "Unread indicator count",
         description = "Show the number of unread messages on the unread indicator in the room list.",
-        defaultValue = { false },
+        defaultValue = { true },
         isFinished = false,
     ),
     SendGalleryMessages(