🌐 Sync Translations + Update README Progress Table (#5581)

### 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/it-IT/translation.toml

@@ -950,6 +950,7 @@ title = "Dividi auto per peso/pagine"
 desc = "Dividi un singolo PDF in più documenti in base alle dimensioni, al numero di pagine o al numero di documenti"
 
 [home.replaceColor]
+tags = "replace color,invert color,color replacement,swap colors,change color,invert,negative,color swap,find and replace color,convert color,color change"
 title = "Sostituisci e inverti colore"
 desc = "Sostituisci o inverti i colori nei documenti PDF"
 
@@ -964,18 +965,22 @@ title = "Scansione automatica cartelle"
 desc = "Link alla guida per scansione cartelle automatizzata"
 
 [home.devSsoGuide]
+tags = "SSO,single sign-on,authentication,SAML,OAuth,OIDC,login,enterprise,identity provider,IdP"
 title = "Guida SSO"
 desc = "Link alla guida SSO"
 
 [home.devAirgapped]
+tags = "air-gapped,offline,isolated,no internet,disconnected,secure,network isolation,standalone"
 title = "Setup isolato (air‑gapped)"
 desc = "Link alla guida per setup air‑gapped"
 
 [home.addPassword]
+tags = "encrypt,password,lock,secure,protect,security,encryption,safeguard,confidential,private,restrict access"
 title = "Aggiungi Password"
 desc = "Crittografa il tuo PDF con una password."
 
 [home.changePermissions]
+tags = "permissions,restrictions,rights,access control,allow,deny,printing,copying,editing,modify permissions,security settings,user rights"
 title = "Cambia Permessi"
 desc = "Modifica restrizioni e permessi del documento"
 
@@ -985,10 +990,12 @@ title = "Automatizza"
 desc = "Crea flussi multi‑step concatenando azioni PDF. Ideale per attività ricorrenti."
 
 [home.overlay-pdfs]
+tags = "overlay,combine,merge,layer,superimpose,overlay PDF,layer PDFs,combine PDFs,stack,overlay pages,background,foreground,composite"
 desc = "Sovrapponi un PDF sopra un altro"
 title = "Sovrapponi PDF"
 
 [home.pdfTextEditor]
+tags = "edit text,modify text,change text,edit content,update text,rewrite,correct,amend,redline,revise,text editor,content editor"
 title = "Editor di testo PDF"
 desc = "Modifica testo e immagini esistenti nei PDF"
 
@@ -4526,6 +4533,13 @@ description = "Numero massimo di tentativi di accesso falliti prima del blocco d
 label = "Tempo di reset accessi (minuti)"
 description = "Tempo prima che i tentativi di accesso falliti vengano azzerati"
 
+[admin.settings.security.xFrameOptions]
+label = "X-Frame-Options"
+description = "Controls whether the application can be embedded in iframes"
+deny = "Deny (Prevents all framing)"
+sameorigin = "Same Origin (Allow framing from same domain)"
+disabled = "Disabled (No X-Frame-Options header)"
+
 [admin.settings.security.csrfDisabled]
 label = "Disabilita protezione CSRF"
 description = "Disabilita la protezione Cross-Site Request Forgery (non raccomandato)"