Move widget extension telemetry docs to the existing page
What does this MR do and why?
I found an existing page for the MR Widget Extension docs, so this should all go there.
Related merge requests
- Related to Potential clarifying improvements to the widget... (!93323 - closed)
- Related to Document Merge Request Widget Extension Telemetry (!92819 - merged)
- Related to Remove combined MR widget page from left nav (gitlab-docs!2991 - merged) which removes this page from the left nav
Edited by Amy Qualls