fix(deps): regenerate package-lock.json (#547)

* fix(deps): regenerate package-lock.json

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

* fix(tests): update toast test for Paragon v23 changes

Paragon removed the redundant "alert" role from the toast container in
openedx/paragon#3434 (landed via openedx/paragon#3567). Updated test to
find the container using document.getElementById instead.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

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Co-authored-by: Claude Code <noreply@anthropic.com>

Author: brian-smith-tcril