Federate spoiler_text using warning attribute on <content /> instead of a <category term="spoiler" />
Clean up schema file from accidental development migrations

metaKey is only set correctly on keyDown, not keyUp, so this swaps to using that

Better initial state for unlisted/nsfw toggles

Fix #205, fix #156, fix #124

Fix #233, fix #268

skip ActionCable for follow/unfollow/block events, instead clear UI from
blocked account's posts instantly if block request succeeds. Add forgotten
i18n for sensitive content

See: https://dequeuniversity.com/rules/axe/2.1/label

Mostly resolves #8, though attachments are still not displayed in public view

Adding better errors for the API controllers, posting a simple status works from the frontend now