The Change List page is used to list items for a particular model that

can be changed or deleted. It optionally offers search capabilities,

actions that can be performed on items, and filters for limiting the

items shown.
The old Change List was heavily built on top of Django's administration

UI, using its classes and layout, but customizing it in places. This

made our version of the page fragile.
The new implementation is fully independent of Django's styling and

template for the page, instead built on top of some of our existing

components (drawers, datagrids, search fields, headers) and on top of

new ones (rb-c-admin-change-list, rb-c-admin-filters,

rb-c-admin-search).
All functionality works with desktop and mobile modes, with the

exception of filters, which currently are hidden in mobile mode.
Actions, which Django provided as UI above the change list, are now

shown in a drawer that appears when items are selected, just like the

dashboard. This only works with a standard action form. Custom action

forms (which are not used by any of the apps we depend on or ship, but

are a feature available in Django) are not supported.
This does remove the django.less, which is what contained many of our

customizations on top of the Django admin UI. This means some pages are

going to look strange or broken until the admin UI rewrite is complete,

but is necessary to make progress on pages to avoid issues with some

base styles.

Tested various change list pages in both desktop and mobile modes,

making sure that search, filters, and actions worked as expected.