I understand that if you want to 'favorite' a dashboard, you should get the pop up the first time you load it asking.. and if you clear that popup (or don't get it in the first place), that you can search for the dashboard and 'favorite' it from the search list.

Why can't there just be a toggle within the dashboards?  Similar to how you can 'favorite' a filter using the star icon at the top next to the filter name?