feat: fix search highlight

[gbirman]

Summary

Screenshots, GIFs, and Videos

[github-actions]

Preview: https://gab-chore-fix-search-highlight-d25au5.preview.macro.com/app (8f6c56c)

[claude]

Code review

Issue found: Missing tests for bug fix

This PR fixes a bug (search highlight) but does not include tests to verify the fix or prevent regression.

According to CLAUDE.md:

Testing - Write tests for your changes. When fixing bugs or regressions, identify the issue with a test before fixing it.

Location: js/app/packages/macro-entity/src/components/EntityWithEverything.tsx:773

The change adds isSearch() && to the condition, which fixes the search highlight logic. However, no tests were added to:

1. Verify the bug is fixed (search highlight only appears when isSearch() is true)
2. Prevent regression of this issue in the future

The macro-entity package currently has no test files. Consider adding a test file for EntityWithEverything.tsx that covers this search highlighting behavior.