docs(contribution): update build instructions in contribution guide

Clarify the build process by updating the order of commands in the
contribution guide. This ensures users run `pnpm run prepack` and
other necessary commands correctly before starting the development
server.

docs/guide/contribution.md

@@ -67,8 +67,8 @@ Next, install the project dependencies using pnpm.
 
 ```bash
 pnpm install
-pnpm run prepack && cd playground && pnpm run prepare && cd ..
 pnpm --filter "./packages/**" run build
+pnpm run prepack && cd playground && pnpm run prepare && cd ..
 ```
 
 ### 3. 🖥️ Run the Development Server