fix login link

[swlody]

When the login form is submitted without a redirect value, the hidden input still renders with value="", so the form POST includes redirect= which deserializes as Some("") instead of None. This causes the login link to be built with &redirect= param, which breaks the login link in the email.

lsd/src/app/auth.rs

Lines 92 to 95 in fe15290

	let login_url = match form.redirect {
	Some(redirect) => format!("{base_url}/login?token={login_token}&redirect={redirect}"),
	None => format!("{base_url}/login?token={login_token}"),
	};

[foltik]

tyty! will take a look and merge once I’m back in town next week