- Add sticky positioning to form action buttons (always visible at bottom)
- Add Ctrl+S / Cmd+S keyboard shortcut to save forms
- Create reusable useFormShortcuts hook
- Apply to all create forms: spool, filament, vendor
Fixes: https://github.com/Donkie/Spoolman/issues/274
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>