[mirotalksfu] - #22 add real-time polls

public/css/Room.css

@@ -1504,6 +1504,8 @@ z-index:
     - 3 control buttons
     - 4 whiteboard
     - 5 chat group
+    - 5 polls
+    - 5 transcription 
     - 6 settings
     - 7 participants/lobby
     - 8 send receive progress