Core: Make renderers presets

[shilman]

Issue: N/A

Telescoping PR, builds on #17982

What I did

This extends the renderer refactor to make renderers presets because each package now as a preview.js entry point per #17755

Discussion

This PR has a few potential issues.

Always executes docs code. In #17982, the framework presets only runs the docs preview code if addon-docs/addon-controls is installed. This new, stylized, version doesn't do that.

May contain more functionality than originally discussed. When we discussed renderers, there were certain features such as ArgType enhancement that would potentially be handled by other packages (whereas source snippet rendering might be handled by the renderer). This is also a problem with #17982. Related to the previous point, but different.

Are presets the right abstraction? We also discussed having a formal API for renderers rather than using Storybook's presets API. For now that's out of scope, but noting it here as potential future work.

How to test

• CI passes

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