fix(config): Bring back minHDHeight

config.js

     'During that time service will not be available. ' +
     'Apologise for inconvenience.',*/
     disableThirdPartyRequests: false,
-    // The minumum value a video's height or width can be, whichever is
-    // smaller, to be considered high-definition.
-    minHDSize: 540,
+    // The minumum value a video's height (or width, whichever is smaller) needs
+    // to be in order to be considered high-definition.
+    minHDHeight: 540,
     // If true - all users without token will be considered guests and all users
     // with token will be considered non-guests. Only guests will be allowed to
     // edit their profile.

modules/UI/videolayout/LargeVideoManager.js

      */
     _updateVideoResolutionStatus() {
         const { height, width } = this.videoContainer.getStreamSize();
-        const isCurrentlyHD = Math.min(height, width) >= config.minHDSize;
+        const isCurrentlyHD = Math.min(height, width) >= config.minHDHeight;
 
         APP.store.dispatch(setLargeVideoHDStatus(isCurrentlyHD));
     }