chore(deps): update dependency react to v19

Author: renovate[bot]

host/package.json

@@ -10,13 +10,13 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1",
     "vite-rslib-ui": "workspace:*"
   },
   "devDependencies": {
     "@eslint/js": "^9.13.0",
-    "@types/react": "^18.3.12",
+    "@types/react": "^19.0.0",
     "@types/react-dom": "^18.3.1",
     "@vitejs/plugin-react": "^4.3.3",
     "eslint": "^9.13.0",

nmit-testing/package.json

@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@tutorialkit/react": "1.3.1",
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
@@ -22,7 +22,7 @@
     "@tutorialkit/theme": "1.3.1",
     "@tutorialkit/types": "1.3.1",
     "@types/node": "^20.14.6",
-    "@types/react": "^18.3.12",
+    "@types/react": "^19.0.0",
     "astro": "^4.16.13",
     "prettier-plugin-astro": "^0.14.1",
     "typescript": "^5.4.5"