- Added `SkipLink` component to `src/components/ui/SkipLink.tsx`
- Added translation keys to `src/i18n`
- Added `<SkipLink />` to `App.tsx`
- Added `id="main-content"` and `tabIndex={-1}` to page main containers
- Verified accessibility via Playwright test
Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>