- Rename 'Local email filters' → 'Local Filters' and 'Server email
filters' → 'Remote Filters' in AppBar titles
- Update banner text on each filter page to focus on the current type
and mention that the other type exists separately
- Add 'Remote Filters' and 'Local Filters' as two distinct drawer
entries so both types are discoverable from the navigation
- Add widget tests verifying titles and banner text for both pages
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>