Closes: https://github.com/fleetdm/confidential/issues/16847
Changes:
- Added a new page, AI-powered IT (/ai)
- Added links to the new page to the homepage, /linux-management,
/infrastructure-as-code, /device-management, and
/visibility-and-reporting pages
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added an “AI-powered IT” page at `/ai`, including structured marketing
content, responsive hero imagery, and clear calls to action.
* Added an “AI-powered IT” entry to the Solutions navigation and updated
key page CTAs to link to `/ai`.
* **Style**
* Introduced and refined responsive `section-buttons`/button-group
layouts across multiple pages.
* Added dedicated styling for the new AI in IT page and adjusted related
feature-with-image spacing for better mobile presentation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Mike Thomas <78363703+mike-j-thomas@users.noreply.github.com>
