Migrate to pnpm

[jrmajor]

Replaces #1875.

[pascalbaljet]

Thanks for this, @jrmajor, looks great! I've updated it to reflect the latest changes and added some more scripts.

Just wondering if you thought there was anything left to do since you marked it as draft?

[jrmajor]

Thank you @pascalbaljet! IIRC, i just wanted to do some more testing to make sure that this doesn't break anything. Let me do a quick self-review to see if there are any todos left.

[jrmajor]

@pascalbaljet Ready for review. Are the test:*:serve scripts needed for something? Seems like that server is only used by Playwright, which doesn't use these scripts anyway.

[pascalbaljet]

@pascalbaljet Ready for review. Are the test:*:serve scripts needed for something? Seems like that server is only used by Playwright, which doesn't use these scripts anyway.

Just a shortcut to spin up the test server so we can easily tinker with it.