Add the display for the actual uploader, and change the label
for the artist to "Artist" for differentiating the two roles.
Bug: T88835
Change-Id: Ie939572e7c1240321556f6f81ed9e67d792a339d
Change the media search widget to work with resource queues and
providers. Create providers based on the user's filerepo settings
and aggregate their responses with the media queue. Stop asking
for more results from providers that are depleted.
Also fixes a rather nasty infinite-loop bug where the API returns
only very few images, and the UI keeps asking for more.
Bug: T78161
Bug: T88764
Change-Id: I65aed3446cd1f056476c56e6e04522c70e49e595