Update react monorepo to v19

Author: renovate[bot]

client/package.json

@@ -8,8 +8,8 @@
     "@testing-library/jest-dom": "^5.16.5",
     "@testing-library/react": "^13.4.0",
     "@testing-library/user-event": "^13.5.0",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router-dom": "^6.11.2",
     "react-scripts": "5.0.1",
     "web-vitals": "^2.1.4"

package.json

@@ -13,8 +13,8 @@
         "@testing-library/jest-dom": "^5.16.5",
         "@testing-library/react": "^13.4.0",
         "@testing-library/user-event": "^13.5.0",
-        "react": "^18.2.0",
-        "react-dom": "^18.2.0",
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
         "react-scripts": "5.0.1",
         "web-vitals": "^2.1.4"
     }