feat(gantt-integration): add SVAR Gantt chart component and related features

- Integrated SVAR Gantt chart into the project view for enhanced task visualization.
- Implemented lazy loading for improved performance and reduced initial bundle size.
- Added custom styles for light and dark themes to match Worklenz branding.
- Updated Redux state management to support Gantt-specific data handling.
- Introduced a ResourcePreloader component to preload critical chunks for better navigation performance.
- Enhanced project view to support Gantt as a new project view option.
- Documented Gantt integration details and usage in README.md.

worklenz-frontend/package.json

@@ -52,7 +52,8 @@
     "react-window": "^1.8.11",
     "socket.io-client": "^4.8.1",
     "tinymce": "^7.7.2",
-    "web-vitals": "^4.2.4"
+    "web-vitals": "^4.2.4",
+    "wx-react-gantt": "^1.3.1"
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^6.6.3",