Add settings to pin and unpin playlist in toolbar menu

app/src/main/java/com/cappielloantonio/play/database/dao/PlaylistDao.java

@@ -0,0 +1,24 @@
+package com.cappielloantonio.play.database.dao;
+
+import androidx.lifecycle.LiveData;
+import androidx.room.Dao;
+import androidx.room.Delete;
+import androidx.room.Insert;
+import androidx.room.OnConflictStrategy;
+import androidx.room.Query;
+
+import com.cappielloantonio.play.model.Playlist;
+
+import java.util.List;
+
+@Dao
+public interface PlaylistDao {
+    @Query("SELECT * FROM playlist")
+    LiveData<List<Playlist>> getAll();
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    void insert(Playlist playlist);
+
+    @Delete
+    void delete(Playlist playlist);
+}