feat: use f_auto,q_auto

[johnnyreilly]

This PR implements usage of f_auto / q_auto - thanks to @rebeccapeltz for the suggestion!

f_auto causes Cloudinary to look at User Agent information in the request header and provides the best image format for the browser or device making the request. q_auto provides compression that makes the image smaller without creating pixelation.

[github-actions]

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