Fix showupdate (#3032)

# Description of Changes

Please provide a summary of the changes, including:


![image](https://github.com/user-attachments/assets/1cfda2a0-32a3-4404-90cf-d0a4b77b65a7)

---

## 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)
- [ ] 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)

- [x] 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/templates/home-legacy.html

@@ -55,8 +55,7 @@
 
         <div class="features-container">
 
-          <div th:if="${@shouldShow}" class="feature-card favorite update-notice" id="update-link"
-            style="display: none;">
+          <div th:if="${@shouldShow}" class="feature-card favorite update-notice visually-hidden" id="update-link-legacy">
             <a href="https://github.com/Stirling-Tools/Stirling-PDF/releases" target="_blank" rel="noopener">
               <div class="d-flex align-items-center">
                 <div id="tool-icon" class="advance" alt="icon">