install paths dynmaic (#2668)

# 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)

src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java

@@ -54,8 +54,8 @@ public class GeneralWebController {
         model.addAttribute("currentPage", "pipeline");
         List<String> pipelineConfigs = new ArrayList<>();
         List<Map<String, String>> pipelineConfigsWithNames = new ArrayList<>();
-        if (new File("./pipeline/defaultWebUIConfigs/").exists()) {
-            try (Stream<Path> paths = Files.walk(Paths.get("./pipeline/defaultWebUIConfigs/"))) {
+        if (new File(InstallationPathConfig.getPipelineDefaultWebUIConfigsDir()).exists()) {
+            try (Stream<Path> paths = Files.walk(Paths.get(InstallationPathConfig.getPipelineDefaultWebUIConfigsDir()))) {
                 List<Path> jsonFiles =
                         paths.filter(Files::isRegularFile)
                                 .filter(p -> p.toString().endsWith(".json"))