Provide TS declaration file for rollup.browser.js

[jeasonstudio]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:
None.

Description

Generate a separate TS declaretion rollup.browser.d.ts for rollup.browser.js

import { rollup, VERSION } from "rollup/dist/rollup.browser";

// ...
rollup({ ... });

[jeasonstudio]

@lukastaegert My PR checks were broken by other issues, lint errors are not included in the modification of the current PR

[shellscape]

Thanks for opening a PR. Unfortunately this is not a chore, but rather a feature, so tests are required. Passing CI is a requirement for all PRs. It's also unclear why this is needed, there was no discussion of this feature prior to submitting it. You'll have to make a convincing case for this before we'll be able to consider it.