====== Favorite Account Board Filter ======

In the account board, if you have the favorites column visible, you will see the heart button appear when in the All tab. This is existing functionality.

{{:desktop:acct_board_fav.png|}}

If you click on that heart, it will cycle from "no favorites filter" > "show favorites" > "show not favorites". 

The button will be 'checked' i.e. color background for show favorites/ not favorites indicating that a filter is being applied. Additionally, the title bar description will add the words " : Favorites" or " : Not Favorites" depending on the filter.

The "not favorites" filter will paint an X over the heart to even further verify the filter that is applied.

{{:desktop:acct_board_fav2.png|Image}}
 
{{:desktop:acct_board_fav3.png|Image}}

Forward compatibility: old version to new version should hold the favorite button state and apply the "favorites" filter.

Backward compatibility: if a user sets a "not favorites" filter and then rolls back to an older version, the older version will just display as if it were a "favorites" filter, since that old version does not know how to filter "not favorites".