Fix unsynced lyrics displaying as one big line

When LRClib returns plain/unsynced lyrics, they contain newlines but
were being sent as a single text block. Jellyfin clients would display
them all on one line.

Now splits plain lyrics by newlines and sends each line separately,
so they display properly line-by-line in the client.

LRClib search URL format:
https://lrclib.net/api/get\?track_name\=\{track\}\&artist_name\=\{artist\}\&album_name\=\{album\}\&duration\=\{seconds\}

allstarr/Controllers/JellyfinController.cs

@@ -1062,13 +1062,26 @@ public class JellyfinController : ControllerBase
                 }
             }
         }
+        else if (!string.IsNullOrEmpty(lyricsText))
+        {
+            // Plain lyrics - split by newlines and return each line separately
+            var lines = lyricsText.Split(new[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
+            foreach (var line in lines)
+            {
+                lyricLines.Add(new
+                {
+                    Start = (long?)null,
+                    Text = line.Trim()
+                });
+            }
+        }
         else
         {
-            // Plain lyrics - return as single block
+            // No lyrics at all
             lyricLines.Add(new
             {
                 Start = (long?)null,
-                Text = lyricsText
+                Text = ""
             });
         }