⬇️(frontend) downgrade to react 18

We still have conflict with React 19, better to
downgrade to react 18 for the moment.
We add the react 18 libs to renovate.json
to prevent future upgrade with Renovate.
An issue will be open to upgrade to React 19
manually.

src/frontend/apps/impress/package.json

@@ -59,7 +59,7 @@
     "@types/lodash": "4.17.15",
     "@types/luxon": "3.4.2",
     "@types/node": "*",
-    "@types/react": "19.0.8",
+    "@types/react": "18.3.12",
     "@types/react-dom": "*",
     "cross-env": "7.0.3",
     "dotenv": "16.4.7",