fix(filmstrip-only): hide video label, always show remote thumbnails

conference.js

             // non-participants displaying video, such as with video sharing.
             const remoteVideosCount = APP.UI.getRemoteVideosCount();
 
-            const shouldShowRemoteThumbnails = APP.UI.isPinned(localUserId)
+            const shouldShowRemoteThumbnails = interfaceConfig.filmStripOnly
+                || APP.UI.isPinned(localUserId)
                 || remoteVideosCount > 1
                 || remoteParticipantsCount !== remoteVideosCount;
 

css/_videolayout_default.scss

                     0px 0px 1px rgba(0,0,0,0.3);
 }
 
+.filmstrip-only {
+    #videoResolutionLabel {
+        display: none;
+    }
+}
 .video-state-indicator {
     background: $videoStateIndicatorBackground;
     color: $videoStateIndicatorColor;