Update group/project restore card styling

Proposal

See &18831

Implementation guide

1. Update styling and copy in app/views/shared/groups_projects/settings/_restore.html.haml
2. Change app/views/projects/edit.html.haml#L119 to render instead of render_if_exists. This used to be an EE feature and never got updated. Also move below render 'delete' for consistency with groups