~aleteoryx/lfm_embed

ref: dccc6dd6c0da121561c48cf70bc49341bec83c51 lfm_embed/src d---------
fix typo in plain theme breaking light mode.
Create plain theme, do some escaping, fix some busted envvars, document themes.
lots of stuff. theming basically done, added some logging, frontend basically done.
pull down user info
fix packages, implement caching
API deserialization structs