Set currentConversation when joinRoom succeeds

currentConversation should have already been set, but it makes sense to set it with the most current data of this case.

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/controllers/ChatController.kt

@@ -1994,6 +1994,8 @@ class ChatController(args: Bundle) :
                         Log.d(TAG, "joinRoomWithPassword - joinRoom - got response: $startNanoTime")
 
                         val conversation = roomOverall.ocs!!.data!!
+                        currentConversation = conversation
+
                         sessionIdAfterRoomJoined = conversation.sessionId
                         ApplicationWideCurrentRoomHolder.getInstance().session = conversation.sessionId
                         ApplicationWideCurrentRoomHolder.getInstance().currentRoomId = conversation.roomId