fix(FEX-14257): fix duplicating cues safari (#807)

### Description of the Changes

Fix for https://kaltura.atlassian.net/browse/FEC-14257

### CheckLists

- [ ] changes have been done against master branch, and PR does not
conflict
- [ ] new unit / functional tests have been added (whenever applicable)
- [ ] test are passing in local environment
- [ ] Travis tests are passing (or test results are not worse than on
master branch :))
- [ ] Docs have been updated

---------

Co-authored-by: quantumInverter <[email protected]>

src/player.ts

@@ -1486,8 +1486,9 @@ export default class Player extends FakeEventTarget {
    */
   private _applyTextTrackConfig(): void {
     const textTrackDisplaySetting = Utils.Object.getPropertyPath(this._config, 'text.textTrackDisplaySetting');
+    const useNativeTextTrack = Utils.Object.getPropertyPath(this._config, 'text.useNativeTextTrack');
     const textStyle = Utils.Object.getPropertyPath(this._config, 'text.textStyle');
-    if (textTrackDisplaySetting) {
+    if (textTrackDisplaySetting && !useNativeTextTrack) {
       const textDisplaySettings: any = Utils.Object.mergeDeep({}, textTrackDisplaySetting, {
         // align - backward compatibility || new caption alignment API || default value
         align: textTrackDisplaySetting?.align || textStyle?.textAlign || 'center'