Fix unusable area at the bottom when RTE is enabled and the user has no permissions in a room.

changelog.d/7411.bugfix

@@ -0,0 +1 @@
+Fix unusable area when Rich Text Editor is enabled and the user has no permissions in a room

vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt

@@ -1131,6 +1131,8 @@ class TimelineFragment :
             lazyLoadedViews.inviteView(false)?.isVisible = false
 
             if (mainState.tombstoneEvent == null) {
+                views.composerContainer.isVisible = messageComposerState.isComposerVisible
+
                 when (messageComposerState.canSendMessage) {
                     CanSendStatus.Allowed -> {
                         NotificationAreaView.State.Hidden

vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerFragment.kt

@@ -252,13 +252,6 @@ class MessageComposerFragment : VectorBaseFragment<FragmentComposerBinding>(), A
         messageComposerViewModel.endAllVoiceActions()
     }
 
-    override fun invalidate() = withState(timelineViewModel, messageComposerViewModel) { mainState, messageComposerState ->
-        if (mainState.tombstoneEvent != null) return@withState
-
-        composer.setInvisible(!messageComposerState.isComposerVisible)
-        composer.sendButton.isInvisible = !messageComposerState.isSendButtonVisible
-    }
-
     private fun setupComposer() {
         val composerEditText = composer.editText
         composerEditText.setHint(R.string.room_message_placeholder)