feat: basic initial implementation of spotify client link validator and song submission form refs: NOISSUE

song_of_the_day/Data/Song.cs

@@ -6,4 +6,6 @@ public class Song
     public string? Name { get; set; }
     public string? Artist { get; set; }
     public string? Url { get; set; }
+    public SongProvider? Provider { get; set; }
+    public string? SpotifyId { get; set; }
 }

song_of_the_day/Data/SongProvider.cs

@@ -0,0 +1,11 @@
+public enum SongProvider
+{
+    Spotify,
+    YouTube,
+    YoutubeMusic,
+    SoundCloud,
+    Bandcamp,
+    PlainHttp,
+    NavidromeSharedLink,
+    Other
+}