temp allow all urls as way to use more of youtube-dl supported sites.

src/minimediaplayer.cpp

@@ -145,7 +145,8 @@ bool MiniMediaPlayer::isValidMediaUrl(QUrl mediaUrl)
         //TODO: check more than host?
         return true;
     }
-    return false;
+    //For now, allow all urls since worst case youtube-dl will just fail to add anything to playlist.
+    return true;
 }
 
 void MiniMediaPlayer::mediaStateChanged(QMediaPlayer::State state)