chore: add dev/build script command

Author: btea

CONTRIBUTING.md

@@ -40,19 +40,16 @@ Here are some helpful commands:
 
 ```sh
 # Build WXT package
-cd packages/wxt
 pnpm build
 ```
 
 ```sh
 # Build WXT package, then build demo extension
-cd packages/wxt-demo
-pnpm build
+pnpm build:demo
 ```
 
 ```sh
 # Build WXT package, then start the demo extension in dev mode
-cd packages/wxt-demo
 pnpm dev
 ```
 

package.json

@@ -6,6 +6,9 @@
   },
   "packageManager": "[email protected]",
   "scripts": {
+    "build": "pnpm -C packages/wxt build",
+    "build:demo": "pnpm -C packages/wxt-demo build",
+    "dev": "pnpm -C packages/wxt-demo dev",
     "check": "check && pnpm -r --sequential run check",
     "test": "pnpm -r --sequential run test run",
     "test:coverage": "pnpm -r --sequential run test:coverage",