long_description & short_description's documentation say they can be
Markdown, but they are String, not SafeString.
This led to escaped strings being printed in the editor
https://github.com/Plume-org/Plume/issues/220
The code is divided in three crates:
- plume-common, for the ActivityPub module, and some common utils
- plume-models, for the models and database-related code
- plume, the app itself
This new organization will allow to test it more easily, but also to create other tools that only reuse a little part of
the code (for instance a Wordpress import tool, that would just use the plume-models crate)
