`service::users::Data::is_deactivated` is possibly bugged

https://gitlab.computer.surgery/matrix/grapevine/-/blob/5a490a4397f0c6a36dab1cb631dadc67a849deab/src/database/key_value/users.rs#L25-35

The comment says:

Check if account is deactivated

But it also will return true for admin bots and remote users.