Notification: expand management command to follow conventions (#10470)
* Notification: expand management command to follow conventions
- Follow the convention we have in other notifications regarind the context: use
`production_uri` instead of `domain
- Use the internal `get_context_data()` and `extra_context=` to follow the
pattern stablished for the `Notification` class.
- Make the new linter to pass.
- Use structlog instead of `print()` function
* Log (debug) rendered notification