refactor: do not force redirects to happen on the server (#481)

frontend/src/routes/login/alternative/email/+page.ts

@@ -0,0 +1,7 @@
+import type { PageLoad } from './$types';
+
+export const load: PageLoad = async ({ url }) => {
+	return {
+		redirect: url.searchParams.get('redirect') || undefined
+	};
+};