df891db6

Author: Michael Lynch <git@mtlynch.io>

Committer: Michael Lynch <mtlynch@noreply.codeberg.org>

Add arrow key navigation on media pages (#44)

Let users move between adjacent /m/ entries with the left and right
arrow keys, matching the existing Previous and Next controls.

Cover the behavior with an end-to-end test that starts from the browse
page and verifies both directions.

Reviewed-on: https://codeberg.org/mtlynch/little-moments/pulls/44
Co-authored-by: Michael Lynch <git@mtlynch.io>
Co-committed-by: Michael Lynch <git@mtlynch.io>