🌐 Sync Translations + Update README Progress Table (#5489)

### Description of Changes

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

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

#### **2. Update README.md**
- Generated the translation progress table in `README.md` using
`counter_translation_v3.py`.
- 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>

frontend/public/locales/eu-ES/translation.toml

@@ -1295,6 +1295,10 @@ cbzDpi = "Irudien errendatzeko DPI"
 cbrOptions = "CBR aukerak"
 cbrOutputOptions = "PDFtik CBRrako aukerak"
 cbrDpi = "Irudien errendatzeko DPIa"
+svgPdfOptions = "SVG to PDF Options"
+combineSvgs = "Combine SVGs into single PDF"
+combineSvgsDescription = "Combine all SVG files into one PDF with multiple pages, or create separate PDFs for each SVG"
+svgVectorNote = "SVG files are rendered as vector graphics for crisp output at any resolution. Dimensions from the SVG determine the PDF page size."
 
 [convert.ebookOptions]
 ebookOptions = "eBooketik PDFra aukerak"
@@ -1396,6 +1400,7 @@ applySignatures = "Aplikatu irudiak"
 name = "Irudia"
 placeholder = "Igo irudi bat"
 label = "Irudi fitxategia"
+hint = "Supports PNG, JPEG, GIF, BMP, TIFF, and SVG files. SVG files will be converted to PNG for embedding."
 
 [addImage.steps]
 configure = "Irudia konfiguratu"