Fix workflow permissions, profile page, roles UI, and sidebar gating

- Add My Workflows permission gate to sidebar and route middleware
- Fix workflow permissions filter in roles index/create (case-insensitive + missing permissions)
- Add AddWorkflowPermissionsSeeder for workflow permissions
- Fix ProfileUpdateRequest validation (first_name/last_name)
- Add showToast fallback on profile edit page
- Change profile Save buttons to green (btn-success)
- Fix folder management table-view search/sort
