Explicitly tell the User who they are authenticating with in Visual Review Toolbar
(Identified in this discussion)
Problem to Solve
When entering the personal access token in the Visual Review Toolbar, it is not obvious with whom the user is actually authenticating. The dialog looks like GitLab, and an unwary user might think they are authenticating with GitLab, but in reality they are authenticating with the review app (which could gain access to the token).
Let's add a "XYZ is requesting access to your GitLab account" message, similar to those seen in OAuth apps.