* Make a distinction between moderators and admins
And rework the user list in the moderation interface, to be able to run the same action on many users,
and to have a huge list of actions whithout loosing space.
* Make user's role an enum + make it impossible for a moderator to escalate privileges
With the help of diesel-derive-enum (maybe it could be used in other places too?)
Also, moderators are still able to grant or revoke moderation rights to other people, but maybe only admins should be able to do it?
* Cargo fmt
* copy/pasting is bad
* Remove diesel-derive-enum and use an integer instead
It was not compatible with both Postgres and SQlite, because for one it generated a schema
with the "User_role" type, but for the other it was "Text"…
* Reset translations
* Use an enum to avoid magic numbers + fix the tests
* Reset translations
* Fix down.sql
- Use `Result` as much as possible
- Display errors instead of panicking
TODO (maybe in another PR? this one is already quite big):
- Find a way to merge Ructe/ErrorPage types, so that we can have routes returning `Result<X, ErrorPage>` instead of panicking when we have an `Error`
- Display more details about the error, to make it easier to debug
(sorry, this isn't going to be fun to review, the diff is huge, but it is always the same changes)
* Run cargo clippy on plume-common
Run clippy on plume-common and adjuste code accordingly
* Run cargo clippy on plume-model
Run clippy on plume-model and adjuste code accordingly
* Reduce need for allocation in plume-common
* Reduce need for allocation in plume-model
add a quick compilation failure if no database backend is enabled
* Run cargo clippy on plume-cli
* Run cargo clippy on plume
