* Add validation for team account names
- Prevent creating teams with reserved names like 'billing' and 'settings'
- Add regex validation to block team names with special characters
- Update localization for new error messages
- Extend E2E tests to cover various invalid team name scenarios
* Enhance team account name validation and slug generation
- Add comprehensive tests for account slug generation in Supabase
- Improve team name validation schema to handle special characters
- Add form validation message display in update team account name form
- Refine slug generation to handle various edge cases like special characters, non-ASCII text, and mixed case