[mirotalksfu] - add Room Lock/Unlock

public/Room.html

@@ -147,6 +147,12 @@
                 <button id="stopScreenButton" class="hidden">
                     <i class="fas fa-stop-circle"></i>
                 </button>
+                <button id="lockRoomButton" class="hidden">
+                    <i class="fas fa-lock-open"></i>
+                </button>
+                <button id="unlockRoomButton" class="hidden">
+                    <i class="fas fa-lock"></i>
+                </button>
                 <button id="aboutButton" class="hidden">
                     <i class="fas fa-question"></i>
                 </button>