pub async fn validate_name(Json(form): Json<NameValidation>) -> impl IntoResponse {

    let name = match &form.name {

        Some(s) if !s.trim().is_empty() => s,

        _ => return HtmlTemplate(ValidationFeedback::error("Account name is required")),

    if name.len() < 2 {

        return HtmlTemplate(ValidationFeedback::error("Account name is too short"));

    }

    if name.len() > 50 {

        return HtmlTemplate(ValidationFeedback::error(

            "Account name is too long (max 50 characters)",

        ));

    }

    HtmlTemplate(ValidationFeedback::success("Valid account name"))

}