Update web dependencies

- react: Update to new root rendering method
- react-router: Replace useHistory with useNavigate
- react-router: Replace <Switch> with <Routes>
- reimplement sticky notice from scratch in ModPackViewPage
- remove isomorphic-ws as it's latest version doesn't work and only
  saves one line of code.
- remove import of antd.dark.css
- fix misc css breakages.

packages/controller/package.json

@@ -35,9 +35,9 @@
   },
   "devDependencies": {
     "@clusterio/web_ui": "^2.0.0-alpha.13",
-    "react": "^16.13.1",
-    "react-dom": "^16.13.1",
-    "react-router-dom": "^5.2.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-router-dom": "^6.4.14",
     "webpack": "^5.88.2",
     "webpack-dev-middleware": "^6.1.1",
     "webpack-merge": "^5.9.0"