Update build dependencies for beanbag-frontend-buildkit.

Review Request #14666 — Created Nov. 3, 2025 and updated

Information

beanbag-frontend-buildkit
master

Reviewers

This change updates the buildkit metapackage to use the latest babel,
rollup, and less versions. It also swaps out uglifyjs for terser.

I've updated the README to not list explicit versions because it's the
sort of thing that easily gets out of date.

Used this from other packages.

Summary ID
Update build dependencies for beanbag-frontend-buildkit.
This change updates the buildkit metapackage to use the latest babel, rollup, and less versions. It also swaps out uglifyjs for terser. I've updated the README to not list explicit versions because it's the sort of thing that easily gets out of date. Testing Done: Used this from other packages.
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Checks run (2 succeeded)
flake8 passed.
JSHint passed.