Updated Hungarian translations for add attachments feature (#3853)

> ### Copilot generated summary:
> 
> This pull request updates Hungarian translations in the
`messages_hu_HU.properties` file to improve clarity and consistency. The
changes primarily focus on refining text for better understanding and
alignment with the intended functionality.
> 
> 
> ### Translation improvements:
> 
> * Revised multiple entries under the `attachments` section to provide
more accurate translations for adding attachments to PDFs, including the
title, header, description, placeholder text, and button label.

### Picture of translation


![image](https://github.com/user-attachments/assets/07c3ce47-922a-4bd7-a292-625dc773b8de)


---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] 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)
- [x] I have performed a self-review of my own code
- [x] 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)

- [x] 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.

stirling-pdf/src/main/resources/messages_hu_HU.properties

@@ -680,7 +680,7 @@ home.HTMLToPDF.desc=HTML fájl vagy ZIP konvertálása PDF-be
 HTMLToPDF.tags=jelölőnyelv,webtartalom,átalakítás,konvertálás
 
 #eml-to-pdf
-home.EMLToPDF.title=E-mail PDF-be
+home.EMLToPDF.title=E-mail konvertálása PDF-be
 home.EMLToPDF.desc=E-mail (EML) fájlok konvertálása PDF formátumba, beleértve a fejléceket, törzset és beágyazott képeket
 EMLToPDF.tags=e-mail,konverzió,eml,üzenet,átalakítás,konvertálás,levél
 
@@ -1210,11 +1210,11 @@ addImage.upload=Kép hozzáadása
 addImage.submit=Kép hozzáadása
 
 #attachments
-attachments.title=Add Attachments
-attachments.header=Add attachments
-attachments.description=Allows you to add attachments to the PDF
-attachments.descriptionPlaceholder=Enter a description for the attachments...
-attachments.addButton=Add Attachments
+attachments.title=Mellékletek hozzáadása
+attachments.header=Mellékletek hozzáadása
+attachments.description=Lehetővé teszi mellékletek hozzáadását a PDF-hez
+attachments.descriptionPlaceholder=Adjon meg egy leírást a mellékletekhez...
+attachments.addButton=Mellékletek hozzáadása
 
 #merge
 merge.title=Egyesítés