As a department admin, I should be able to change the departments logo

[chopchop505]

Overview

Admins can currently set the logo, but a department admin should be able to change the logo as well.

Acceptance Criteria

In dev, login as a departmentAdmin (e.g. richmondAdmin). Upload a new logo. Login as a regular user (e.g. richmond). The avatar logo should reflect the new logo.

Mockups / Screenshots

It probably makes sense to add it to the departmentAdmin page.
Currently, the departmentAdmin page is only 1 table of the Department Users and their access level

We should consider making this page look more like the user settings page (/settings)

Then we could have tabs for different tabs.
Tab 1 (User Access): the current user access
Tab 2 (Preferences): a form to change department settings. It'll be simple for now with just the ability to upload the logo.

@larskendall - Any thoughts on that layout?