Rethink DevTools panel to better accomodate filters that don't relate to requests
Background / User story
Over time we've been introducing more types of filters that can't be associated to requests. For instance:
$generichidefilters apply to the top level document or a subdocument (see non-request types).
- Element hiding filters apply to DOM elements.
What to change
- Design: TBD
- Research: TBD
- Spec: TBD
Hints for testers
Hints for translators