2.7.2 Hotfix (Compatibility)

This maintenance release improves Smart Search theme (dark mode) compatibility without changing search behavior.

Changes

- Fixed the Smart Search suggestions dropdown turning dark when Windows or the browser used dark mode while FreeScout remained in light mode.
- Added explicit light-theme text, heading, hover, focus, and keyboard-selection contrast.
- Improved dropdown readability in supported FreeScout dark themes.
- Improved highlighted search-result contrast.
- Preserved the v2.7.1 split-search performance improvements.