Theme changed and fixed Bug for dark mode in various pages

Author: Arunkoo

Client/package-lock.json

@@ -42,11 +42,14 @@
     "@types/react": "^19.1.16",
     "@types/react-dom": "^19.1.9",
     "@vitejs/plugin-react": "^5.0.4",
+    "autoprefixer": "^10.4.22",
     "babel-plugin-react-compiler": "^19.1.0-rc.3",
     "eslint": "^9.36.0",
     "eslint-plugin-react-hooks": "^5.2.0",
     "eslint-plugin-react-refresh": "^0.4.22",
     "globals": "^16.4.0",
+    "postcss": "^8.5.6",
+    "postcss-nesting": "^13.0.2",
     "tailwindcss": "^4.1.17",
     "tw-animate-css": "^1.4.0",
     "typescript": "~5.9.3",