🌐 [V2] Sync Translations + Update README Progress Table (#4569)

### Description of Changes

This Pull Request was automatically generated to synchronize updates to
translation files and documentation for the **V2 branch**. Below are the
details of the changes made:

#### **1. Synchronization of Translation Files**
- Updated translation files
(`frontend/public/locales/*/translation.json`) to reflect changes in the
reference file `en-GB/translation.json`.
- Ensured consistency and synchronization across all supported language
files.
- Highlighted any missing or incomplete translations.

#### **2. Update README.md**
- Generated the translation progress table in `README.md`.
- Added a summary of the current translation status for all supported
languages.
- Included up-to-date statistics on translation coverage.

#### **Why these changes are necessary**
- Keeps translation files aligned with the latest reference updates.
- Ensures the documentation reflects the current translation progress.

---

Auto-generated by [create-pull-request][1].

[1]: https://github.com/peter-evans/create-pull-request

Co-authored-by: stirlingbot[bot] <195170888+stirlingbot[bot]@users.noreply.github.com>

scripts/ignore_translation.toml

@@ -192,7 +192,6 @@ ignore = [
     'AddStampRequest.alphabet',
     'AddStampRequest.position',
     'PDFToBook.selectText.1',
-    'addPageNumbers.selectText.3',
     'adminUserSettings.team',
     'alphabet',
     'audit.dashboard.modal.id',
@@ -325,7 +324,6 @@ ignore = [
     'AddStampRequest.position',
     'AddStampRequest.rotation',
     'PDFToBook.selectText.1',
-    'addPageNumbers.selectText.3',
     'adminUserSettings.actions',
     'alphabet',
     'compare.document.1',