Add new translation key across all language files for toggling
export scope (all rows vs current page only). This supports a UI
control that lets users choose export scope before exporting data.
- Add `export_scope_toggle` key to Common.php for every locale
(ar-EG, ar-LB, az, bg, bs, ckb, cs, da, de-CH, de-DE, el, en-GB,
en, es-ES, es-MX, fa, fr, he, hr-HR, and others)
- Placed alongside existing export_all/export_page keys for
consistency
- Each translation localized to its respective language
Signed-off-by: objecttothis <17935339+objecttothis@users.noreply.github.com>