Dynamic search context that contains all repositories where the current user or current user's team(s) listed as codeowner

Created by: mike-r-mclaughlin

Requested by: https://github.com/sourcegraph/accounts/issues/6716

Feedback

It would be great if there were a builtin search context that is created automatically by Sourcegraph that includes all repositories where the current user or one of the current user's teams is the codeowner. (This means we'll need a way to pull or define the teams a current user belongs to and a way to parse/read code owner files, etc.)

Customer

https://github.com/sourcegraph/accounts/issues/6716 via weekly sync