dynamic port for UI from 8080 up (8081 etc) (#3042)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

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

@@ -57,12 +57,11 @@ public class RuntimePathConfig {
         this.pipelineDefaultWebUiConfigs = webUiConfigsPath;
 
         boolean isDocker = isRunningInDocker();
-        
+
         // Initialize Operation paths
         String weasyPrintPath = isDocker ? "/opt/venv/bin/weasyprint" : "weasyprint";
         String unoConvertPath = isDocker ? "/opt/venv/bin/unoconvert" : "unoconvert";
 
-
         // Check for custom operation paths
         Operations operations = properties.getSystem().getCustomPaths().getOperations();
         if (operations != null) {
@@ -78,9 +77,8 @@ public class RuntimePathConfig {
         this.weasyPrintPath = weasyPrintPath;
         this.unoConvertPath = unoConvertPath;
     }
-    
+
     private boolean isRunningInDocker() {
         return Files.exists(Paths.get("/.dockerenv"));
     }
-    
 }