Use `delete_project_modal.vue` for "Delete Project" button on `app/views/projects/no_repo.html.haml`

The app/views/projects/no_repo.html.haml template is rendered when a project exists without any source code (repository).

There is a "Delete project" button on this page, but it uses an old modal. This should be updated to use delete_project_modal.vue.

current	expected