fix(vite): Tailwind/postcss optimisation issue

[dac09]

Fixes issue discussed in https://www.notion.so/redwoodjs/Understand-Tailwind-optimisation-issue-db9c6c435e7b4ccaaa9edb0e641f43d9?pvs=4

What was the problem?

when running postcss/tailwind through Vite where the web directory is not at the root of the repo, Vite passes the root path as cwd, not the web folder. HOWEVER - this really is only visible when you try to run dev or build programatically. Before this change we were only running build programatically, and dev through a binary - which is why we saw the issue on build but not on dev.

Why: because the tailwind optimiser was not looking in web/src/** but in src/** (which does not exist) because the process.cwd is the root of the project

[replay-io]

1 replays were recorded for b1d5fcb.

0 Failed

1 Passed

• Smoke test with dev server

View test run on Replay ↗︎

[dac09]

I think the tests will e2e tests will never pass here, because I introduced a new brinary (rw-vite-build). We're going to have to merge first! (I've tested locally with yalc)

[dac09]

Going to merge this in, as e2e tests will never pass with a new binary. Will revert/fix if there are issues