* Add toggle to check if a user is premium without the partner subscription
* fix test
* Parter created users do not have a newsletter alias id
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Co-authored-by: Adrià Casajús <adria.casajus@proton.ch>
* Separate code for proton callback handler
* Upgrade migration
* Use simple_login endpoint from Proton API
* Remove unused classes
* Rename Dto class to Data
* Push rename
* Moved link to PartnerUser to allow subscriptions to depend only on it
* Fix test
* PR comments
* Add unique user_id constraint to PartnerUser
* Added more logs
* Added more logs
Co-authored-by: Adrià Casajús <adria.casajus@proton.ch>