/// The register form, one field per `RegisterRequest` field. Every one of them
/// is optional at this layer: the client does not validate either, it trims and
/// posts, and the backend answers with what is wrong.
#[derive(serde::Deserialize)]
pub(crate) struct RegisterInput {
    #[serde(default)]
    pub username: String,
    #[serde(default)]
    pub email: String,
    #[serde(default)]
    pub password: String,
    #[serde(default)]
    pub password_confirmation: String,
    #[serde(default)]
    pub timezone: String,
    #[serde(default)]
    pub phone_country: String,
}