Fix SyncPlay ping never being reported to the server (#8201)

Author: riseprometheus

src/plugins/syncPlay/core/Manager.js

@@ -61,7 +61,7 @@ class Manager {
 
         Events.on(this.timeSyncCore, 'time-sync-server-update', (event, timeOffset, ping) => {
             // Report ping back to server.
-            if (this.syncEnabled) {
+            if (this.isSyncPlayEnabled()) {
                 this.getApiClient().sendSyncPlayPing({
                     Ping: ping
                 });

src/plugins/syncPlay/core/timeSync/TimeSync.js

@@ -49,7 +49,7 @@ class Measurement {
      * Get ping time, in milliseconds.
      */
     getPing() {
-        return this.getDelay() / 2;
+        return Math.round(this.getDelay() / 2);
     }
 }