[Gitlab snippets] Too many projects to choose from #1001
Description
When listing all projects through gitlab API (v4), all projects are returned, and the results are only the 20 first.
If the codimd user is not a member of those projects, no project can be selected to export snippets to.
This is because the /projects uri changed contract between v3 and v4 of gitlab api. It used to return only project the user was a member of.