[dashboard]filter super epic phase 2, text based dashboard filter

[junlincc]

some remaining items on https://docs.google.com/spreadsheets/d/1CcOt2abGfQLoDvLL6jHqyX7HYy6-lh3qB7OSKNhrWTs/edit#gid=0

Jinja compatible??
When I use Jinja templating to create a text-based filter(with range, =,>,<,!= etc.) and apply to charts on dashboard.
I get the yellow warning filter indicator as an incompatible filter, but the filters are actually applied.
not sure how to integrate with dashboard native filter

scope tbd