Due to the difficulty of implementing a toggleFavourite() feature for the sidenav that could both change the Top Community list and Favourites Community list, I have just implemented a Favourites Community list. The routes seem to work, and the Favourites list properly updates when a community is favourited/unfavourited from the Browse View. Favourited communities can be unfavourited from the Favourite community list as well.
Due to the difficulty of implementing a toggleFavourite() feature for the sidenav that could both change the Top Community list and Favourites Community list, I have just implemented a Favourites Community list. The routes seem to work, and the Favourites list properly updates when a community is favourited/unfavourited from the Browse View. Favourited communities can be unfavourited from the Favourite community list as well.