Settings display demo and login fix (#4884)

# Description of Changes
<img width="1569" height="980" alt="image"
src="https://github.com/user-attachments/assets/dca1c227-ed84-4393-97a1-e3ce6eb1620b"
/>

<img width="1596" height="935" alt="image"
src="https://github.com/user-attachments/assets/2003e1be-034a-4cbb-869e-6d5d912ab61d"
/>

<img width="1543" height="997" alt="image"
src="https://github.com/user-attachments/assets/fe0c4f4b-eeee-4db4-a041-e554f350255a"
/>


---

## 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/devGuide/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/devGuide/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/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### 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/devGuide/DeveloperGuide.md#6-testing)
for more details.

frontend/src/core/components/shared/AppConfigModal.tsx

@@ -143,16 +143,15 @@ const AppConfigModal: React.FC<AppConfigModalProps> = ({ opened, onClose }) => {
                       <div
                         key={item.key}
                         onClick={() => {
-                          if (!isDisabled) {
-                            setActive(item.key);
-                            navigate(`/settings/${item.key}`);
-                          }
+                          // Allow navigation even when disabled - the content inside will be disabled
+                          setActive(item.key);
+                          navigate(`/settings/${item.key}`);
                         }}
                         className={`modal-nav-item ${isMobile ? 'mobile' : ''}`}
                         style={{
                           background: isActive ? colors.navItemActiveBg : 'transparent',
-                          opacity: isDisabled ? 0.5 : 1,
-                          cursor: isDisabled ? 'not-allowed' : 'pointer',
+                          opacity: isDisabled ? 0.6 : 1,
+                          cursor: 'pointer',
                         }}
                         data-tour={`admin-${item.key}-nav`}
                       >