Add characters to "Favorites" feature

With a game with 500+ characters, we could really use an "add to favorites" button.

Often you get reminded of some C Tier, you really need to take up as Trainer. Unless you keep notes or spreadsheets, you can very easily forget about them again.

Scopely could even make it an extra incentive to the Managers Pass, allowing them up to 4 seperate lists. (much like loadouts).

Everybody wins.