feat: sync Playlists, wip: pair songs

app/src/main/java/at/lockstep/player/LockstepViewModelFactory.kt

@@ -0,0 +1,17 @@
+package at.lockstep.player
+
+import android.app.Application
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+
+class LockstepViewModelFactory(
+    private val application: Application,
+) : ViewModelProvider.Factory {
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(LockstepViewModel::class.java)) {
+            @Suppress("UNCHECKED_CAST")
+            return LockstepViewModel(application) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class: ${modelClass.name}")
+    }
+}