Update dependency cssnano to v7

Author: renovate[bot]

apps/web/package.json

@@ -84,7 +84,7 @@
     "@types/jsonwebtoken": "9.0.10",
     "@types/react": "18.3.24",
     "@types/react-dom": "18.3.7",
-    "cssnano": "6.1.2",
+    "cssnano": "7.1.2",
     "dotenv-cli": "7.4.4",
     "postcss": "8.5.6",
     "remix-flat-routes": "0.8.5",