Add sync mode support

index.html

@@ -58,7 +58,7 @@
           },
           workletLogs: true,
           latencyAdjustMethod: "fast-forward", // "fast-forward" | "seek"
-          syncBuffer: 3000,
+          // syncBuffer: 3000,
         });
 
         window.nimio.on("nimio:play", (inst, contId) => {

src/nimio.js

@@ -436,7 +436,7 @@ export default class Nimio {
       this._audioBuffer = null;
     }
     this._latencyCtrl.reset();
-    this._syncModeParams = {};
+    if (this._syncModeParams) this._syncModeParams = {};
     this._advertizerEval.reset();
 
     if (this._nextRenditionData) {