Update the libary

- Google Material
- Androidx ktx, media3, navigiation, work runtime
- Kotlin
- new version coming "Purple"
- some bug fixes

app/src/main/java/com/michatec/radio/PlayerService.kt

@@ -104,7 +104,7 @@ class PlayerService : MediaLibraryService() {
 
 
     /* Overrides onTaskRemoved from Service */
-    override fun onTaskRemoved(rootIntent: Intent) {
+    override fun onTaskRemoved(rootIntent: Intent?) {
         if (!player.playWhenReady) {
             stopSelf()
         }