Backend: Create error tracking widget
We will need to create an new error tracking widget for the work item of type issue.
1. The widget should have data related to sentry_issue model.
2. It should expose the data that we currently send to the frontend from here: https://gitlab.com/gitlab-org/gitlab/-/blob/master/app/views/projects/issues/_sentry_stack_trace.html.haml#L1
through graphQL
task