This PR introduces a few changes to improve turbopack compatibility and
ensure e2e tests pass with turbopack enabled
## Changes to improve turbopack compatibility
- Use correct sideEffects configuration to fix scss issues
- Import scss directly instead of duplicating our scss rules
- Fix some scss rules that are not supported by turbopack
- Bump Next.js and all other dependencies used to build payload
## Changes to get tests to pass
For an unknown reason, flaky tests flake a lot more often in turbopack.
This PR does the following to get them to pass:
- add more `wait`s
- fix actual flakes by ensuring previous operations are properly awaited
## Blocking turbopack bugs
- [X] https://github.com/vercel/next.js/issues/76464
- Fix PR: https://github.com/vercel/next.js/pull/76545
- Once fixed: change `"sideEffectsDisabled":` back to `"sideEffects":`
## Non-blocking turbopack bugs
- [ ] https://github.com/vercel/next.js/issues/76956
## Related PRs
https://github.com/payloadcms/payload/pull/12653https://github.com/payloadcms/payload/pull/12652
Converts all text and field labels into variables that can be
translated. Also generated the translations for them
So now the UI here is internationalised

I've also moved some of the generic labels into the core package since
those could be re-used elsewhere
Having the `scripts` dir re-use all packages from the top-level was
getting quite unwieldy. Created new `tools` directory that is part of
the workspace. Packages are exported with the `@tools` package
namespace.