This commit:
- adds the template to the jobs page (and puts it at the top of the send SMS
page) so that it consistently appears in the same place throughout the
journey
- put the real data about a job on the jobs page and on the dashboard
Banners should always be the first thing on the page.
Because headers already have padding we don’t want to put padding on the
container.
So banners should also have top padding to distance then from the red bar.
They should also sit in the 3/4 column if the page has side navigation. This
commit adds a new template (`withoutnav_template.html`) which extends
`admin_template.html`. All views then extend one or the other, never the
`admin_template.html` directly. This means that `admin_template.html` doesn’t
have to make decisions about where the flash messages are displayed.
