Core package should not depend on colorette

[akx]

Describe the bug

The core package depends on colorette to be able to color error messages using ANSI codes.

That package attempts to read process.env during import time, which isn't a thing in browsers (unless transpiled), causing trouble trying to use @redocly/openapi-core with e.g. https://vitejs.dev/.

(Another related issue is node-fetch, which doesn't work OOTB in a Vite environment either.)

To Reproduce Steps to reproduce the behavior:

1. Try to import @redocly/openapi-core 1.0.0-beta.80 in a non-bundling browser environment.
2. See error

Expected behavior

The library should not depend on a console coloring library.

[AlexVarchuk]

It also relates to https://github.com/Redocly/redoc/issues/1820.

[roman-sainchuk]

Hello @akx In 1.0.0-beta.108 was added browser support. We're still depending on colorette but it is not used in browser env (replacement for node-fetch is still in progress but you can provide customFetch field with browser-compatible implementation). Please let us know if you still have issues with it

[lornajane]

I think this has been fixed, so I'll close the issue but please let us know if this still causes a problem.