362ac445ea
## Problem
The delete button on a saved filter was only revealed on **hover**. On
desktop that's fine, but on touch devices the button is invisible yet
still clickable, so users kept deleting saved filters by accident. There
was also no confirmation step before a filter was deleted.
## Changes
- **Always visible on touch** — the hover-reveal is now gated behind
`@media (hover: hover)`. On hover-capable devices the trash icon still
appears only on hover; on touch devices (`hover: none`) it stays
visible.
- **Confirm before deleting** — deleting a saved filter now opens an
`AlertDialog` confirmation ("Are you sure you want to delete "…"?"),
matching the existing delete-confirmation pattern used across the app.
Cancel/Escape dismiss without deleting.
## QA
Tested end-to-end in a real browser (mobile emulation, `hover: none`):
- Desktop (`hover: hover`): delete button computes `opacity: 0` until
hover ✓
- Touch (`hover: none`): delete button computes `opacity: 1`, visible
without hover ✓
- Tapping the trash icon opens the confirmation dialog with the correct
filter name ✓
- **Cancel** keeps the filter (verified in DB) ✓
- **Delete** removes it (verified in DB) ✓
## Demo
<img width="1265" height="1277" alt="qa-01-desktop-dropdown"
src="https://github.com/user-attachments/assets/29915c68-0d6e-49da-839d-ee75462338ae"
/>
<img width="1265" height="1277" alt="qa-02-confirm-dialog"
src="https://github.com/user-attachments/assets/a1bee93c-e4fe-4652-a545-35136b427772"
/>
<img width="1265" height="1277" alt="qa-03-after-delete"
src="https://github.com/user-attachments/assets/c7d66a4c-d27a-4d04-8506-05d797d4630f"
/>
<img width="389" height="844" alt="qa-04-mobile-dropdown"
src="https://github.com/user-attachments/assets/9d172e69-3a34-4fdf-a6ce-5771be23f45b"
/>
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