chore(android): improve exoplayer logs (#3780)

* perf: ensure we do not provide callback to native if no callback provided from app

* chore: rework bufferConfig to make it more generic and reduce ReactExoplayerView code size

* chore: improve issue template

* fix(android): avoid video view flickering at playback startup

* fix: improve debuging display and enable it in the sample

examples/basic/src/VideoPlayer.tsx

@@ -936,6 +936,7 @@ class VideoPlayer extends Component {
           onPlaybackRateChange={this.onPlaybackRateChange}
           onPlaybackStateChanged={this.onPlaybackStateChanged}
           bufferingStrategy={BufferingStrategyType.DEFAULT}
+          debug={{enable: true, thread: true}}
         />
       </TouchableOpacity>
     );