chatmail
Add API to enable/disable accounts in account manager
In account manager it should be possible to disable accounts in such a way that they are not started when dc_accounts_start_io() is called.
It could be implemented as dc_accounts_enable(account_id: u32, enabled: bool) and dc_accounts_is_account_enabled(account_id: u32) -> bool calls.
Whether account is enabled or not should be written into accounts.toml. #4295 should be fixed before tackling this issue, because otherwise each toggle of account status may fail and corrupt accounts.toml.
Desktop currently has implemented an UI hack that disables background synchronization for all accounts, and this feature is about implementing a per-account switch telling whether the account should be synchronized in background or not.