Account Recovery

[matheus23]

• Route for sending a recovery email
• Route for updating DID using a challenge obtained from the former

Draft for now. Expect this to change, but feel free to give feedback.

To-do:

• [x] Add a new Email template to SIB for account recovery and add config options for that in env.yaml
• [x] Clean up some stuff. (E.g. web api DID.Types.hs file. Do we want to 'overload' the /user/did route?)

See the swagger docs live at https://matheus23.fission.pizza/docs/ (in case I've got the pizza instance running just now lol).

[matheus23]

I've changed the route to use capture instead of a QueryParam now. Let me know if this is good to go now :)

Also, there's a small checklist for getting this running on staging, the env.yaml config needs to be updated according to the env.yaml.example in this PR. Concretely, we need to set these fields:

send_in_blue:
  api_key: XXX # No need to change
  base_url: https://api.sendinblue.com # No need to change as well
  verification_email_template_id: 17 # This setting's key changed
  recovery_email_template_id: 26 # This key is new
  recovery_app_url: https://fission-dashboard.fissionapp.net/recover/ # This will be the recovery app URL for **staging**

[expede]

Let me know if this is good to go now :)

Bump the minor server version and merge away!