Update messages_it_IT.properties (#3287)

# 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.

src/main/resources/messages_it_IT.properties

@@ -83,7 +83,7 @@ loading=Caricamento...
 addToDoc=Aggiungi al documento
 reset=Resetta
 apply=Applica
-noFileSelected=No file selected. Please upload one.
+noFileSelected=Nessun file selezionato. Caricane uno.
 
 legal.privacy=Informativa sulla privacy
 legal.terms=Termini e Condizioni
@@ -734,10 +734,10 @@ sanitizePDF.title=Pulire PDF
 sanitizePDF.header=Pulisci un file PDF
 sanitizePDF.selectText.1=Rimuovi le azioni JavaScript
 sanitizePDF.selectText.2=Rimuovi i file incorporati
-sanitizePDF.selectText.3=Remove XMP metadata
+sanitizePDF.selectText.3=Rimuovi i metadati XMP
 sanitizePDF.selectText.4=Rimuovi collegamenti
 sanitizePDF.selectText.5=Rimuovi i font
-sanitizePDF.selectText.6=Remove Document Info Metadata
+sanitizePDF.selectText.6=Rimuovi metadati delle informazioni del documento
 sanitizePDF.submit=Pulisci PDF