feat: add new features, update theme and build config

- Add 40+ new UI components including chat modules, discovery cards, photo galleries, FAQ and booking tools
- Standardize brand color across all styles by replacing $theme-color-500 SCSS variables with #0ccd58
- Add sass 1.58.3 dependency and update vite config for modern scss compiler support
- Refactor existing components (AddCarCrad, login page) and remove unused /quick/list router route
- Add utility functions for URL parameter handling
- Add static assets including custom znicons font, component images and icons
- Fix scss syntax issues and deprecation warnings

package.json

@@ -28,6 +28,7 @@
     "@vitejs/plugin-vue-jsx": "^5.1.5",
     "@vue/tsconfig": "^0.7.0",
     "concurrently": "^9.2.1",
+    "sass": "1.58.3",
     "tailwindcss": "^4.1.12",
     "typescript": "^5.8.3",
     "vconsole": "^3.15.1",