Media browser breaks if AJAX disabled on views.view.media_library.yml

Problem/Motivation

If the AJAX option is disabled on the media_library view the follow happens:
* Media library popup: using the filters and pager redirect to a mostly blank page with a chunk of JSON showing at the top of the page.
* Media content page (/admin/content/media): doesn't work.

Steps to reproduce

Install media and media library.
Add the media button to the editor toolbar.
Disable AJAX on the Media Library view.

Proposed resolution

Either display a warning on the Media Library popup if AJAX is disabled on the view, or provide a workaround so that it still works.

Remaining tasks

Work out the best way of dealing with this problem.

User interface changes

TBD

API changes

TBD

Data model changes

TBD

Release notes snippet

TBD