Deprecated attribute th:include (#2827)

# Description of Changes

Deprecated attribute `th:include` in template `home`.

---

## 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)

- [ ] 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.html

@@ -37,13 +37,13 @@
                     </div>
                     <div class="recent-features">
                       <div class="newfeature"
-                        th:include="~{fragments/navbarEntryCustom :: navbarEntry('redact', '/images/redact-manual.svg#icon-redact-manual', 'home.redact.title', 'home.redact.desc', 'redact.tags', 'security')}">
+                        th:insert="~{fragments/navbarEntryCustom :: navbarEntry('redact', '/images/redact-manual.svg#icon-redact-manual', 'home.redact.title', 'home.redact.desc', 'redact.tags', 'security')}">
                       </div>
                       <div class="newfeature"
-                        th:include="~{fragments/navbarEntry :: navbarEntry ('multi-tool', 'construction', 'home.multiTool.title', 'home.multiTool.desc', 'multiTool.tags', 'organize')}">
+                        th:insert="~{fragments/navbarEntry :: navbarEntry ('multi-tool', 'construction', 'home.multiTool.title', 'home.multiTool.desc', 'multiTool.tags', 'organize')}">
                       </div>
                       <div class="newfeature"
-                        th:include="~{fragments/navbarEntry :: navbarEntry('validate-signature', 'verified', 'home.validateSignature.title', 'home.validateSignature.desc', 'validateSignature.tags', 'security')}">
+                        th:insert="~{fragments/navbarEntry :: navbarEntry('validate-signature', 'verified', 'home.validateSignature.title', 'home.validateSignature.desc', 'validateSignature.tags', 'security')}">
                       </div>
                     </div>
                   </div>