Batch safe dependency updates: dompurify, webpack, babel, and others

Update safe minor/patch dependencies that were blocked by dependabot's
broken lock file generation. Fix markdown test expectations for
DOMPurify 3.3.2's changed attribute ordering.

- dompurify: ^3.2.4 → ^3.3.2 (security fixes)
- webpack: 5.94.0 → 5.105.4
- @babel/cli: ^7.26.4 → ^7.28.3
- @babel/core: ^7.26.0 → ^7.28.5
- @testing-library/react: ^16.0.1 → ^16.3.1
- @google-cloud/translate: ^9.1.0 → ^9.3.0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: mattwoberts