Update wiki docs with several improvements including:
- Searching by title in the sidebar.
- Removal of limit of 15 items in the sidebar.
- Separation of wiki page title and path fields.
- Setting title using front matter when working locally.
- Table of contents in the wiki sidebar.

Other improvements to the docs page include:
- Simplifying rich text editor documentation.
- Moving related topics to the bottom of the page.
- Move Track wiki events section above Troubleshooting.