Added autocomplete="off" attribute to all checkboxes to prevent browser from
automatically restoring checkbox states after page reload.
Changes:
- Inbox page: Added autocomplete="off" to select-all and row checkboxes
- Run Checks page: Added autocomplete="off" to select-all and row checkboxes
This fixes the issue where after deleting items, the browser would automatically
re-select the same number of checkboxes that were previously selected, causing
unwanted selections on the reloaded page.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>