## Summary
Fixes error snackbars disappearing too quickly by **disabling
auto-dismiss for error variants by default**. Error snackbars now remain
visible until the user closes them.
Closes#19694
## What changed
- Error snackbars no longer default to a 6s timeout (they only
auto-dismiss if an explicit `duration` is provided).
- Non-error snackbars keep the existing default auto-dismiss behavior
(6s).
- Progress bar animation/visibility is tied to auto-dismiss (no progress
bar when there’s no duration).
**Files**
-
packages/twenty-front/src/modules/ui/feedback/snack-bar-manager/components/SnackBar.tsx
## How to test
1. Trigger a long error snackbar (example: spreadsheet/CSV import error
with a long message).
2. Confirm the snackbar **stays visible** until clicking **Close**.
3. Trigger a success/info snackbar and confirm it **still
auto-dismisses** after ~6s.
## Notes
- Call sites that explicitly pass `options.duration` for error snackbars
will continue to auto-dismiss (intentional).
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Co-authored-by: Charles Bochet <charles@twenty.com>
