feat(create-rslib): add prepublishOnly script for templates

[wangjue666]

Summary

Automatically execute the npm run build command before executing the npm publish command

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[fi3ework]

Thanks for contribution. While we're trying to make create-rslib a minimal scaffold to create Rslib project. prepublishOnly is not must-have script if the user already ran npm run build in the release workflow ahead. Since the workflow might varies, we tend to keep it simple and leave the opt-in command to userland.

[wangjue666]

Thanks for contribution. While we're trying to make create-rslib a minimal scaffold to create Rslib project. prepublishOnly is not must-have script if the user already ran npm run build in the release workflow ahead. Since the workflow might varies, we tend to keep it simple and leave the opt-in command to userland.

Appreciate your insights!