fix(video-menu) fixed position for horizontal filmstrip view

react/features/filmstrip/components/web/Thumbnail.js

             statsPopoverPosition = 'left-start';
             tooltipPosition = 'left';
             break;
+        case LAYOUTS.HORIZONTAL_FILMSTRIP_VIEW:
+            statsPopoverPosition = 'top';
+            tooltipPosition = 'top';
+            break;
         default:
             statsPopoverPosition = 'auto';
             tooltipPosition = 'top';

react/features/video-menu/components/web/LocalVideoMenuTriggerButton.js

     case LAYOUTS.VERTICAL_FILMSTRIP_VIEW:
         _menuPosition = 'left-end';
         break;
+    case LAYOUTS.HORIZONTAL_FILMSTRIP_VIEW:
+        _menuPosition = 'top';
+        break;
     default:
         _menuPosition = 'auto';
     }

react/features/video-menu/components/web/RemoteVideoMenuTriggerButton.js

     case LAYOUTS.VERTICAL_FILMSTRIP_VIEW:
         _menuPosition = 'left-end';
         break;
+    case LAYOUTS.HORIZONTAL_FILMSTRIP_VIEW:
+        _menuPosition = 'top';
+        break;
     default:
         _menuPosition = 'auto';
     }