QA failures due to change in UI behavior when creating a new project

This is due to gitlab-org/gitlab-ce!21386 just merged yesterday. QA was not run on this branch. /cc: @timzallmann

Example failing build: https://gitlab.com/gitlab-org/gitlab-qa/-/jobs/95925023

Before the project name would be inferred from the project path (aka slug):

After, the project name is a separate field from the project path. Filling in the project path does NOT fill in the project name, but the reverse is true:

QA::Page::Project::New fills in the project path here: https://gitlab.com/gitlab-org/gitlab-ce/blob/98a5413de4089943c4ecfaabcfbe9a3e10ca444d/qa/qa/page/project/new.rb#L35

I think the simple fix is to change the field to fill in this project name.