Allow deletion of user data - user interface

[louilinn]

User story:

The user wants to

1. delete their user data themselves without sending an email request
   or
2. free up the username for another account

This happens mostly in connection to:
A wallet has not been deployed correctly
A wallet has been locked by the dead-man switch (90 day limit)

Current situation / workaround

At the moment the username has to be replaced by a non-sense name which spams our username database and occupies usernames unnecessarily
Same with avatar and email.

Suggested UI solution:

Add option in "Edit profile" (/edit) and "Settings" (/settings) to delete user data email, username and avatar all at once with an "Are you sure?" popup.

The popup should explain that this will delete your avatar, username and email from the database and thus remove the connection between this data and your wallet/safe addresses that is on the blockchain. It will not delete your transaction messages or any transaction data on the blockchain. And maybe a link to information about what it means that your transactions are on the blockchain and that it cannot be deleted. (Pending article in handbook CirclesUBI/circles-handbook#58)

Considerations of allowing deletion of usernames (already concern for edit)

In activity log and when visiting the profile, the safe-address will be displayed instead of the old username for all other users.

[louilinn]

I assigned this to you @triaslucia so you can provide designs for this if it will be a priority any time soon

[louilinn]

Design material
https://www.figma.com/file/v6sux8936u74uo3jSi6RBS/Product-and-UX-design-circles.garden-(Circles-myxogastria)-(Copy)?type=design&node-id=10224-9812&mode=design&t=AfU2j4UwxH31S6JR-0

[louilinn]

Related issue to new design: #638
Back button should trigger cancel popup

[louilinn]

Places to call Delete Avatar through core.avatar.delete:

Deleting data actively

• After user data entry is deleted through the core (core.user.delete) in Edit profile or in Settings (Button Delete Profile)

Replacing an old image

• In Edit Profile when you save a new image, the old one should be deleted'

Replacing pending images

• In Edit Profile when you have uploaded an image and upload a new one before saving, the first unsaved one should be deleted
• In account creation when you have uploaded an image and upload a new one before saving, the first unsaved one should be deleted
• In org account creation when you have uploaded an image and upload a new one before saving, the first unsaved one should be deleted

Cancellation

• In Edit Profile when you cancel with the back button and one pending avatar has been uploaded, it should be deleted
• In account creation when canceling through back button after having uploaded an image from first step and thus abort the creation - (pop up?)
• In org account creation when canceling through back button after having uploaded an image from first step and thus abort the creation - (pop up?)

Also fix bug in personal wallet onboarding where if you go back to image upload step, you only have "I'll do this later" and not continue.