Update messages_it_IT.properties (#4793)

# Description of Changes

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Please provide a summary of the changes, including:

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

Closes #(issue_number)
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## 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/devGuide/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/devGuide/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/devGuide/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/devGuide/DeveloperGuide.md#6-testing)
for more details.

app/core/src/main/resources/messages_it_IT.properties

@@ -628,9 +628,9 @@ home.pdfToImage.title=Da PDF a immagine
 home.pdfToImage.desc=Converti un PDF in un'immagine. (PNG, JPEG, GIF)
 pdfToImage.tags=conversione,img,jpg,immagine,foto
 
-home.PDFToVideo.title=PDF to Video Slideshow
+home.PDFToVideo.title=Presentazione video da PDF
-home.PDFToVideo.desc=Convert a PDF into a slideshow-style video.
+home.PDFToVideo.desc=Converti un PDF in un video in stile presentazione.
-PDFToVideo.tags=conversion,video,slideshow,presentation
+PDFToVideo.tags=conversione,video,presentazione,slideshow
 
 home.pdfOrganiser.title=Organizza
 home.pdfOrganiser.desc=Rimuovi/Riordina le pagine in qualsiasi ordine.
@@ -1264,8 +1264,8 @@ repair.submit=Ripara
 flatten.title=Appiattire
 flatten.header=Appiattisci PDF
 flatten.flattenOnlyForms=Appiattisci solo i moduli
-flatten.renderDpi=Rendering DPI (optional, recommended 150 DPI):
+flatten.renderDpi=DPI Rendering (facoltativo, consigliato 150 DPI):
-flatten.renderDpi.help=Leave blank to use the system default. Higher DPI sharpens output but increases processing time and file size.
+flatten.renderDpi.help=Lasciare vuoto per utilizzare l'impostazione predefinita del sistema. Un DPI più alto aumenta la nitidezza dell'output, ma aumenta i tempi di elaborazione e le dimensioni del file.
 flatten.submit=Appiattisci
 
 
@@ -1407,7 +1407,7 @@ multiTool.dragDropMessage=Pagina(e) selezionata(e)
 multiTool.undo=Annulla
 multiTool.redo=Rifai
 multiTool.duplicate=Duplicate
-multiTool.svgNotSupported=SVG files are not supported in Multi Tool and were ignored.
+multiTool.svgNotSupported=I file SVG non sono supportati in Strumenti multipli e sono stati ignorati.
 
 #decrypt
 decrypt.passwordPrompt=Questo file è protetto da password. Inserisci la password:
@@ -1517,16 +1517,16 @@ pdfToImage.includeAnnotations=Includi annotazioni (commenti, evidenziazioni, ecc
 
 
 #pdfToVideo
-pdfToVideo.title=PDF to Video Slideshow
+pdfToVideo.title=Presentazione video da PDF
-pdfToVideo.header=PDF to Video Slideshow
+pdfToVideo.header=Presentazione video da PDF
-pdfToVideo.videoFormat=Video format
+pdfToVideo.videoFormat=Formato video
-pdfToVideo.secondsPerPage=Seconds per page
+pdfToVideo.secondsPerPage=Secondi per pagina
-pdfToVideo.resolution=Resolution
+pdfToVideo.resolution=Risoluzione
-pdfToVideo.watermarkText=Watermark Text (empty for no watermark)
+pdfToVideo.watermarkText=Testo della filigrana (vuoto per nessuna filigrana)
-pdfToVideo.opacity=Opacity of the watermark (only applied if a watermark text is specified)
+pdfToVideo.opacity=Opacità della filigrana (applicata solo se è specificato un testo della filigrana)
-pdfToVideo.resolutionOriginal=Original (keep PDF page size)
+pdfToVideo.resolutionOriginal=Originale (mantiene le dimensioni della pagina PDF)
-pdfToVideo.dpiLabel=DPI (The server limit is {0} dpi)
+pdfToVideo.dpiLabel=DPI (Il limite del server è {0} dpi)
-pdfToVideo.submit=Convert
+pdfToVideo.submit=Converti
 
 
 #addPassword
@@ -1708,14 +1708,14 @@ split-by-sections.horizontal.placeholder=Inserire il numero di divisioni orizzon
 split-by-sections.vertical.placeholder=Inserire il numero di divisioni verticali
 split-by-sections.submit=Dividi PDF
 split-by-sections.merge=Unisci in un unico PDF
-split-by-sections.pageToSplit=Pages to split (Enter a comma-separated list of page numbers) :
+split-by-sections.pageToSplit=Pagine da dividere (inserisci un elenco di numeri di pagina separati da virgole) :
-split-by-sections.pageToSplit.placeholder=(e.g. 1,2,6)
+split-by-sections.pageToSplit.placeholder=(es. 1,2,6)
-split-by-sections.mode=Split Mode
+split-by-sections.mode=Modalità divisione
-split-by-sections.mode.1=Split All Except First & Last
+split-by-sections.mode.1=Dividi tutto tranne il primo & l'ultimo
-split-by-sections.mode.2=Split All Except First
+split-by-sections.mode.2=Dividi tutto tranne il primo
-split-by-sections.mode.3=Split All Except Last
+split-by-sections.mode.3=Dividi tutto tranne l'ultimo
-split-by-sections.mode.4=Split All Pages
+split-by-sections.mode.4=Dividi tutte le pagine
-split-by-sections.mode.5=Custom: Specify Pages
+split-by-sections.mode.5=Personalizzato: specifica le pagine