chore(ssr): update generateMarkup type defs

[wjhsf]

Details

With all the indirection between the generated code fragments (and their lack of types) and the transmogrifier, the types in render.ts got a bit out of date. I updated them to be accurate and tried to DRY it up a bit. But it's not that repetitive, so the abstraction might be too much in the other direction? 🤷

Note that TypeScript knows to expand the rest params, so that the tooltips still look as if the functions had been defined the regular way.

Does this pull request introduce a breaking change?

• 😮‍💨 No, it does not introduce a breaking change.
• 💔 Yes, it does introduce a breaking change.

Does this pull request introduce an observable change?

• 🤞 No, it does not introduce an observable change.
• 🔬 Yes, it does include an observable change.

GUS work item

[wjhsf]

/nucleus ignore --reason "Unrelated __lwc failure in webruntime"