refactor: use pnpm as package manager

Author: abdelouahed oumoussa

demo/package-lock.json

@@ -10,6 +10,7 @@
     "vue": "^3.2.13"
   },
   "devDependencies": {
+    "@vitejs/plugin-vue": "^3.2.0",
     "vite": "^3.0.2"
   }
 }

demo/package.json

@@ -13,5 +13,15 @@
   "devDependencies": {
     "vitepress": "^1.0.0-alpha.28",
     "vue": "^3.2.43"
+  },
+  "pnpm": {
+    "peerDependencyRules": {
+      "ignoreMissing": [
+        "@algolia/client-search",
+        "react",
+        "react-dom",
+        "@types/react"
+      ]
+    }
   }
 }