fix(config): Do not use config.renderStubDefaultSlot

[xanf]

Right now I've spent 30 minutes figuring why my default slots in stubs were not rendered, just to figure out, that our docs mention global.renderStubDefaultSlot as the way to control stub behavior, however we have both config.renderStubDefaultSlot and config.global.renderStubDefaultSlot with first being a preference

While technically this is a breaking change, I find an ability to define same thing in two places extremely confusing and fix for affected codebases will be trivial (swap config.renderStubDefaultSlot with config.global.renderStubDefaultSlot)

Otherwise, if we decide that we do not want to have such breaking change, I suggest swapping priority, so config.global.renderStubDefaultSlot will be taken into account before config.renderStubDefaultSlot and mark config.renderStubDefaultSlot as deprecated

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[lmiller1990]

I think this is fine - I don't think that many people are using this, except people who know VTU really well.

Can you write a short and simple explanation for this so we can include it in the patch notes @xanf? Then we can merge and release.

[cexbrayat]

LGTM

I don't think this is too breaking, but maybe we could have an intermediate state that does not remove the option but logs a warning about its deprecation and indicates that config.global.renderStubDefaultSlot should be preferred? I think marking it with @deprecated can also help in the meantime, as people can spot the deprecation via their IDE or ESLint. Then we could really remove the option in the following release (maybe v2.1)

But I'm fine with going straight ahead as well if it is properly documented, as I don't think this is widely used.

[xanf]

@lmiller1990 @cexbrayat I've updated PR with your suggestions:

• config.renderStubDefaultSlot is marked as deprecated in typescript
• We will trigger console warning when config.renderStubDefaultSlot is set to true even if user is not using TypeScript

[cexbrayat]

👍