Function clear 

pub fn clear(name: &str) -> Result<(), CookieError>

Deletes a cookie by name.

Example

#[server]
async fn logout() -> Result<(), ServerFnError> {
    dioxus_cookie::clear("session")?;
    Ok(())
}

Platform Behavior

• Server: Sets cookie with immediate expiration
• Browser: Removes from document.cookie
• Desktop/Mobile: Removes from system keyring