3081-Handle_mail_account_creation_with_sync_adapter

Description

This MR enables support for murena & google mail account creation with the sync adapter to perform sync & disable sync the mail account creation right after the login flow.

Screenshots

Technical details

Tests

• https://gitlab.e.foundation/e/os/mail/-/quality/test_cases/80
• https://gitlab.e.foundation/e/os/mail/-/quality/test_cases/81
• https://gitlab.e.foundation/e/os/mail/-/quality/test_cases/82

Issues

• e/backlog#3081 (closed)

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