File paths dynamic (#2605)

# Description

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

Closes #(issue_number)

## Checklist

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] 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/)
- [ ] 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)

---------

Co-authored-by: pixeebot[bot] <104101892+pixeebot[bot]@users.noreply.github.com>
Co-authored-by: a <a>

src/main/java/stirling/software/SPDF/config/FileFallbackTemplateResolver.java

@@ -33,7 +33,8 @@ public class FileFallbackTemplateResolver extends AbstractConfigurableTemplateRe
             String characterEncoding,
             Map<String, Object> templateResolutionAttributes) {
         Resource resource =
-                resourceLoader.getResource("file:./customFiles/templates/" + resourceName);
+                resourceLoader.getResource(
+                        "file:" + InstallationPathConfig.getTemplatesPath() + resourceName);
         try {
             if (resource.exists() && resource.isReadable()) {
                 return new FileTemplateResource(resource.getFile().getPath(), characterEncoding);