Break circular dep: index.ts ... web_worker.ts -> src/index.ts

[zhangyiatmicrosoft]

Launch Checklist

Long circular depedency:
src/index.ts -> src/ui/map.ts -> src/style/style.ts -> src/util/global_worker_pool.ts -> src/util/worker_pool.ts -> src/util/web_worker.ts -> src/index.ts

It looks very reasonable to move workerURL to config object instead of piggyback on main maplibre.

• Confirm your changes do not include backports from Mapbox projects (unless with compliant license) - if you are not sure about this, please ask!
• Briefly describe the changes in this PR.
• Link to related issues.

[HarelM]

There's a need to update the documentation I believe and also a note in the changelog that this is a breaking change.
I would recommend opening an issue in the docs repo after this is merged so that we don't forget to update the documentation there (about the workers, csp etc).
Overall, this look good. THANKS!

[HarelM]

A side note, this will also cause conflicts with #2130

[zhangyiatmicrosoft]

Regarding doc changes, actually no need, I think.
Everyone can still use maplibre.workerUrl = "foo", it is just wraps and sends to config object. No one external or internal needs to and should care.
I have been trying to keep it exactly as before and reduce entries in Changelog to only absolutely necessary.

[zhangyiatmicrosoft]

A side note, this will also cause conflicts with #2130

I will work with him to get this correctly merged. Thanks

[HarelM]

My mistake, I complete read the code wrong. Thanks for pointing this out! :-)

[rotu]

I like this change :-) Thank you!