Unfavorite fix remove function

* Cleaned up the unfavorite so it only deletes the node from the favorite list
* Made it possible to add a favorite to your layout
Interesting. Maybe Favorites do benefit from their own type of column. Regular "tab" folders contain columns of type=regular, for whatever that's worth. If this is a `favorite_column`, then the other 40% column should also be of type `favorite_column`.