restore ability to follow cards of a type from a card of that type
Idea
+status
+priority
+tag
+issues
With the move of the notification interface from card footer to the new menu we lost this.
+solution
follow could gain a submenu - first item is |follow cardname| and second is something like "follow all |cardtype|"
If someone's already following the relevant cardtype, then stop graying out the "(following)" and when they hover it becomes "stop following all |cardtype|"
+discussed in support tickets
+relevant user stories