360d597d

By: Michael Lynch <git@mtlynch.io>

Stop treating photo thumbnails as part of Tinybeans exports

Tinybeans photo metadata may include thumbnail URLs, but exported photo entries
should not be modeled as having local thumbnail files. We generate photo
thumbnails during import from the full-size image.

This change removes photo thumbnail expectations from the raw Tinybeans parse
layer and its tests, while keeping video thumbnail handling intact and keeping
post-import thumbnails required for every media type.