Improve documentation usability with version indicators/dropdown

Our documentation would benefit from adding version indicators/dropdowns to make it easier for users to find and understand relevant content across different versions and feature sets.

Possible improvements:

- Add version indicators on pages (e.g., showing which product/version the content applies to)
- Introduce dropdown selectors for switching between versions or product editions
- Improve navigation for version-specific content to reduce confusion and duplication
- Ensure consistent labeling of deprecated, current, and upcoming features