2299 feature request language selection overhaul (#3017)

# Description of Changes

Please provide a summary of the changes, including:

- UI design of language drop down has changed
- too few languages were visible on the drop down
- Flags caused controversy 
- Scaling window due to size required adding some /@media CSS tags in
navbar css

Closes #(2299)

---

## 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)
- [ x] 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

- [x ] 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.

---------

Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>

src/main/resources/templates/fragments/navbar.html

@@ -143,7 +143,7 @@
             </a>
             <div class="dropdown-menu dropdown-menu-tp" aria-labelledby="languageDropdown">
               <div class="dropdown-menu-wrapper px-xl-2 px-2">
-                <div class="scrollable-y dropdown-mw-20">
+                <div class="scrollable-y lang_dropdown-mw scalable-languages-container">
                   <th:block th:insert="~{fragments/languages :: langs}"></th:block>
                 </div>
               </div>