Add more information to dropdown projects [add project to team]

You can't really add used projects as it's too cumbersome to get the right repo/tracker.
Add more information or remove unnecessary trackers/repos (404 ones for example).
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The issue names no files, tests, or entry point. Start by locating the add-project-to-team dropdown and inspect how repositories and trackers are presented; done means users can identify the correct project and unusable 404 entries are removed or clearly handled.

Written by the indexing model from the issue text.