Nav Bar Fixes for Mobile Devices (#3927)

# Description of Changes

<!--
Please provide a summary of the changes, including:

- Nav bar was changed to be more responsive to mobile
- DPR was disabled on mobile devices < 1200 pixels wide
- Chevron up/down icons added to collapsable menu items on mobile
- I changes bg-card styling to add a liltle bit of a margin to the
bg-card components on mobile.
- Changed from hover to open -> click to open on nav bar items, I feel
this is more intuitive, let me know what you think

Closes #(issue_number)
-->

---

## Checklist

### General

- [x ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ x] 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)
- [ x] I have performed a self-review of my own code
- [ x] 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)

### 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.

---------

Co-authored-by: Ethan <ethan@MacBook-Pro.local>

app/core/src/main/resources/static/js/navbar.js

@@ -42,6 +42,39 @@ function toolsManager() {
   });
 }
 
+function setupDropdowns() {
+  const dropdowns = document.querySelectorAll('.navbar-nav > .nav-item.dropdown');
+
+  dropdowns.forEach((dropdown) => {
+    const toggle = dropdown.querySelector('[data-bs-toggle="dropdown"]');
+    if (!toggle) return;
+
+    // Skip search dropdown, it has its own logic
+    if (toggle.id === 'searchDropdown') {
+      return;
+    }
+
+    dropdown.addEventListener('show.bs.dropdown', () => {
+      // Find all other open dropdowns and hide them
+      const openDropdowns = document.querySelectorAll('.navbar-nav .dropdown-menu.show');
+      openDropdowns.forEach((menu) => {
+        const parentDropdown = menu.closest('.dropdown');
+        if (parentDropdown && parentDropdown !== dropdown) {
+          const parentToggle = parentDropdown.querySelector('[data-bs-toggle="dropdown"]');
+          if (parentToggle) {
+            // Get or create Bootstrap dropdown instance
+            let instance = bootstrap.Dropdown.getInstance(parentToggle);
+            if (!instance) {
+              instance = new bootstrap.Dropdown(parentToggle);
+            }
+            instance.hide();
+          }
+        }
+      });
+    });
+  });
+}
+
 window.tooltipSetup = () => {
   const tooltipElements = document.querySelectorAll('[title]');
 
@@ -56,26 +89,55 @@ window.tooltipSetup = () => {
     document.body.appendChild(customTooltip);
 
     element.addEventListener('mouseenter', (event) => {
-      customTooltip.style.display = 'block';
-      customTooltip.style.left = `${event.pageX + 10}px`; // Position tooltip slightly away from the cursor
-      customTooltip.style.top = `${event.pageY + 10}px`;
+      if (window.innerWidth >= 1200) {
+        customTooltip.style.display = 'block';
+        customTooltip.style.left = `${event.pageX + 10}px`;
+        customTooltip.style.top = `${event.pageY + 10}px`;
+      }
     });
 
-    // Update the position of the tooltip as the user moves the mouse
     element.addEventListener('mousemove', (event) => {
-      customTooltip.style.left = `${event.pageX + 10}px`;
-      customTooltip.style.top = `${event.pageY + 10}px`;
+      if (window.innerWidth >= 1200) {
+        customTooltip.style.left = `${event.pageX + 10}px`;
+        customTooltip.style.top = `${event.pageY + 10}px`;
+      }
     });
 
-    // Hide the tooltip when the mouse leaves
     element.addEventListener('mouseleave', () => {
       customTooltip.style.display = 'none';
     });
   });
 };
+
+// Override the bootstrap dropdown styles for mobile
+function fixNavbarDropdownStyles() {
+  if (window.innerWidth < 1200) {
+    document.querySelectorAll('.navbar .dropdown-menu').forEach(function(menu) {
+      menu.style.transform = 'none';
+      menu.style.transformOrigin = 'none';
+      menu.style.left = '0';
+      menu.style.right = '0';
+      menu.style.maxWidth = '95vw';
+      menu.style.width = '100vw';
+      menu.style.marginBottom = '0';
+    });
+  } else {
+    document.querySelectorAll('.navbar .dropdown-menu').forEach(function(menu) {
+      menu.style.transform = '';
+      menu.style.transformOrigin = '';
+      menu.style.left = '';
+      menu.style.right = '';
+      menu.style.maxWidth = '';
+      menu.style.width = '';
+      menu.style.marginBottom = '';
+    });
+  }
+}
+
 document.addEventListener('DOMContentLoaded', () => {
   tooltipSetup();
-  
+  setupDropdowns();
+  fixNavbarDropdownStyles();
   // Setup logout button functionality
   const logoutButton = document.querySelector('a[href="/logout"]');
   if (logoutButton) {
@@ -89,4 +151,6 @@ document.addEventListener('DOMContentLoaded', () => {
       }
     });
   }
+
 });
+window.addEventListener('resize', fixNavbarDropdownStyles);