fix(deps): bump browserslist to 4.28.8 to resolve Dependabot alerts

[mpbarnwell]

Summary

Follow-up to #151. Resolves the two new Dependabot alerts (#135, #136) by bumping the transitive browserslist dependency from 4.28.6 to 4.28.8 in package-lock.json. Lockfile-only change (npm update browserslist); every parent (@babel/helper-compilation-targets, webpack, autoprefixer, core-js-compat, the cssnano/postcss-* family, @docusaurus/faster) declares ^4.23.0 or wider, so no override is needed.

Package	From	To	Alerts fixed
browserslist	4.28.6	4.28.8	#135 GHSA-73wf-gq98-2v4g (high): uncaught crash / prototype write via untrusted browserslist-stats.json custom stats #136 GHSA-c83g-rgw3-j3cx (high): unbounded memory growth (no cache eviction) via distinct query results

Release notes review

No breaking changes:

• 4.28.7 (changelog) — the security release: fixes the unbounded memory growth and the prototype write issue, plus a parsing performance improvement.
• 4.28.8 — one bug fix for including kaios in baseline queries. We don't use baseline queries, so no effect on our browserslist config.

Both vulnerabilities only matter when browserslist is fed untrusted queries or a hostile browserslist-stats.json; in this repo the queries come from package.json and there is no custom stats file, so exposure was already low.

Still open: image-size (#127, #128)

Unchanged from #151: no patched release exists and Docusaurus is tracking the replacement in facebook/docusaurus#12231.

Verification

• npm run build (Docusaurus production build) passes

• npm run typecheck passes

• npm audit now reports only the two image-size advisories

• Lockfile diff touches browserslist plus its own five data dependencies, which npm update refreshed to the versions its new range resolves to. All are browser-compatibility data packages with no code-behaviour impact on our build:

  Package	From	To
  baseline-browser-mapping	2.10.43	2.11.20
  caniuse-lite	1.0.30001805	1.0.30001810
  electron-to-chromium	1.5.389	1.5.420
  node-releases	2.0.51	2.0.54
  update-browserslist-db	1.2.3	1.3.2

🤖 Generated with Claude Code