Videos and gifs used instead of photos

As videos and gifs are an essential part of today's marketing and branding, it would be nice if the platform could show animations, videos and giphs in addition to photos. Although in this scenario, it would be important that all videos and animations would be made so, that you can't see where the video starts and ends (so it should play non-stop and smoothly).

No files, tests, or entry points are named. Start by locating the existing photo display flow and determine how media assets are represented and rendered. Done means the platform can display animations, videos, and GIFs in place of or alongside photos, with motion looping smoothly without a visible start or end.

Written by the indexing model from the issue text.