* add: database abstraction
* update: get lang from database
* udpate: with repositories
* add: interfaces to connect a database provider
- easy swapping between database provider
* add: setup page
- add: in-memory database provider
- create a new account (signup)
- login with username and password
- first setup page to create an account
- PASSWORD_HASH was removed from environment and files was updated/removed due to that change
* update: Dockerfile
* fix: review done
- remove: REQUIRES_PASSWORD & RELEASE environment variables
* fix: i18n translation
- rename directories
* update: use database
* fix: typecheck
* fix: review
* rebase & add: persistent lowdb provider
* update: french translation
* revert: due to rebase
* remove & document
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