Posts endpoint: 📷 Create/update photo post type

[paulrobertlloyd]

This feature may need to be realised in stages:

• Support entering URL to a photo
• Support entering multiple photos (with JavaScript)
• Support uploading a file, and getting URL response from Media endpoint

Entering multiple audio files (without JavaScript) is being tracked in #722.

[sentience]

I think I needed this today. I noticed that publishing an image with a description via Micropub (using the Micro.Blog client) creates a Photo post type, but there does not appear to be a way to create such a post with Indiekit's web UI. Uploading a file works (and the metadata shown in the Uploaded Files view says it has a post type of "photo"), but the uploaded image doesn't appear in the Published posts list, nor do I see any way to add a description or syndicate it.

[paulrobertlloyd]

In the next beta it will be possible to add multiple photos, and upload files from the post interface. The only outstanding issue is being able to add multiple photos without JavaScript, which is now being tracked as a separate issue in #722.