fix: observe player progress also when in pause state

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/player/data/PlaybackRepositoryImpl.kt

@@ -42,7 +42,7 @@ internal class PlaybackRepositoryImpl(
 
     @OptIn(ExperimentalCoroutinesApi::class)
     private val currentPosition: Flow<Duration> = playbackState.flatMapLatest { state ->
-        if (state == PlaybackState.PLAYING) {
+        if (state in listOf(PlaybackState.PLAYING, PlaybackState.PAUSED)) {
             flow {
                 while (true) {
                     emit(audioPlayer.currentPosition)