Update messages_it_IT.properties (#2993)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

Author: albanobattistella

Diff for: src/main/resources/messages_it_IT.properties

@@ -992,7 +992,7 @@ pdfOrganiser.mode.7=Rimuovi prima
 pdfOrganiser.mode.8=Rimuovi ultima
 pdfOrganiser.mode.9=Rimuovi la prima e l'ultima
 pdfOrganiser.mode.10=Unione pari-dispari
-pdfOrganiser.mode.11=Duplicate all pages
+pdfOrganiser.mode.11=Duplica tutte le pagine
 pdfOrganiser.placeholder=(ad es. 1,3,2 o 4-8,2,10-12 o 2n-1)
 
 
@@ -1035,7 +1035,7 @@ decrypt.success=File decrittografato con successo.
 multiTool-advert.message=Questa funzione è disponibile anche nella nostra <a href="{0}">pagina multi-strumento</a>. Scoprila per un'interfaccia utente pagina per pagina migliorata e funzionalità aggiuntive!
 
 #view pdf
-viewPdf.title=View/Edit PDF
+viewPdf.title=Visualizza/Modifica PDF
 viewPdf.header=Visualizza PDF
 
 #pageRemover