chore: update to react router v8

package.json

@@ -30,7 +30,7 @@
     "@iconify/react": "^6.0.2",
     "@kubernetes/client-node": "^1.4.0",
     "@lezer/highlight": "^1.2.3",
-    "@react-router/node": "^7.18.0",
+    "@react-router/node": "^8.0.1",
     "@uiw/react-codemirror": "4.25.10",
     "arktype": "^2.2.1",
     "clsx": "^2.1.1",
@@ -45,8 +45,7 @@
     "react-codemirror-merge": "4.25.10",
     "react-dom": "19.2.7",
     "react-error-boundary": "^6.1.2",
-    "react-router": "^7.18.0",
-    "react-router-dom": "^7.18.0",
+    "react-router": "^8.0.1",
     "restty": "^0.1.35",
     "tailwind-merge": "3.6.0",
     "ulidx": "2.4.1",
@@ -54,7 +53,7 @@
     "yaml": "2.9.0"
   },
   "devDependencies": {
-    "@react-router/dev": "^7.18.0",
+    "@react-router/dev": "^8.0.1",
     "@shopify/lang-jsonc": "^1.0.1",
     "@tailwindcss/vite": "^4.3.1",
     "@types/js-yaml": "^4.0.9",