Add e-mail based login

svelte/src/login/Router.svelte

@@ -0,0 +1,36 @@
+<script>
+import TabMenu from "../util/TabMenu.svelte";
+import Register from "./Register.svelte";
+import Login from "./Login.svelte";
+import { onMount } from "svelte";
+import { get_user } from "../lib/PixeldrainAPI.mjs";
+
+let pages = [
+	{
+		path: "/login",
+		title: "Login",
+		icon: "login",
+		component: Login,
+	}, {
+		path: "/register",
+		title: "Register",
+		icon: "settings",
+		component: Register,
+	},
+]
+
+onMount(async () => {
+	const params = new URLSearchParams(document.location.search)
+	const user = await get_user()
+	if (
+		params.get("link_login_user_id") === null &&
+		params.get("link_login_id") === null &&
+		user.username !== ""
+	) {
+		console.debug("User is already logged in, redirecting to user dashboard")
+		window.location.href = "/user"
+	}
+})
+</script>
+
+<TabMenu pages={pages} title="Login" large_tabs />