Fix: Thymeleaf syntax (/*[[...]]*/) (#2659)

# Description

Please provide a summary of the changes, including relevant motivation
and context.

Closes #(issue_number)

## Checklist

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have performed a self-review of my own code
- [ ] I have attached images of the change if it is UI based
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [x] My changes generate no new warnings
- [ ] 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)

src/main/resources/static/js/csrf.js

@@ -18,7 +18,7 @@ document.addEventListener('DOMContentLoaded', function() {
     // Find all forms and add CSRF token
     const forms = document.querySelectorAll('form');
     const csrfToken = decodeCsrfToken(getCsrfToken());
-    
+
     // Only proceed if we have a cookie-based token
     if (csrfToken) {
         forms.forEach(form => {
@@ -34,4 +34,4 @@ document.addEventListener('DOMContentLoaded', function() {
             form.appendChild(csrfInput);
         });
     }
-});
+});