Update to svelte 5

svelte/src/layout/Menu.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 import { user } from "lib/UserStore";
 
-let nav: HTMLElement;
+let nav: HTMLElement = $state();
 
 export const toggle = () => {
 	var body = document.getElementById("page_body");
@@ -21,7 +21,7 @@ export const reset = () => {
 }
 </script>
 
-<button id="button_toggle_navigation" class="button_toggle_navigation" on:click={toggle}>☰</button>
+<button id="button_toggle_navigation" class="button_toggle_navigation" onclick={toggle}>☰</button>
 <nav bind:this={nav} id="page_navigation" class="page_navigation">
 	<a href="/#">Home</a>
 	<a href="/#prepaid">For Creators</a>