moved and rewrote table-of-contents.svelte to use stateful design

src/lib/components/table-of-contents.svelte

@@ -1,32 +1,27 @@
 <script lang="ts">
     import {onMount} from 'svelte';
 
-    let {
-        stickyScrolling,
-    }: {
-        stickyScrolling?: boolean;
-    } = $props();
+    interface TocEntry {
+        text: string;
+        link: string;
 
-    let idCounter: number = 0;
+        /**
+         * possible values: 0, 1, 2, 3
+        */
+        indentLevel: number;
+    }
 
-    let root: HTMLElement;
-    let container: HTMLElement;
+    let tocEntries: TocEntry[] = $state([]);
 
     onMount(() => {
         let headers = getHeaders();
         headers.forEach(header => {
-            let headerId = getHeaderId(header);
-            var element = document.createElement("a");
-            element.classList += "toc-level-" + getHeaderLevel(header);
-            element.href = `#${headerId}`;
-            element.innerHTML = `${(header as HTMLElement).innerHTML}`;
-            container.appendChild(element);
+            tocEntries.push({
+                text: `${(header as HTMLElement).innerHTML}`,
+                link: `#${getHeaderId(header)}`,
+                indentLevel: getHeaderLevel(header),
+            });
         });
-
-        // Hide table of contents if no valid entries have been found
-        if (headers.length == 0) {
-            root.style.display = "none";
-        }
     });
 
     let getHeaders = function(): NodeList {
@@ -43,41 +38,40 @@
             text = text.replaceAll(/[^a-zA-Z0-9]/gi, "-");
             id = text;
             (header as HTMLElement).id = id;
-            idCounter += 1;
         }
         return id;
     }
 
-    let getHeaderLevel = function(header: Node): string {
+    function getHeaderLevel(header: Node): number {
         switch ((header as HTMLElement).tagName) {
             case "H2":
-                return "0";
+                return 0;
             case "H3":
-                return "1";
+                return 1;
             case "H4":
-                return "2";
+                return 2;
             case "H5":
-                return "3";
+                return 3;
             default:
-                return "0";
+                return 0;
         }
     }
 </script>
 
-{#if stickyScrolling}
-    <div class="toc-container sticky-toc" bind:this={root}>
-        {@render tocList()}
-    </div>
-{:else}
-    <div class="toc-container" bind:this={root}>
-        {@render tocList()}
+{#snippet tocEntryLine({ entry }: { entry: TocEntry })}
+    <a class="toc-level-{entry.indentLevel}" href="{entry.link}">{@html entry.text}</a>
+{/snippet}
+
+{#if tocEntries.length > 0}
+    <div class="toc-container">
+        <ul class="toc-list">
+            {#each tocEntries as entry}
+                {@render tocEntryLine({ entry })}
+            {/each}
+        </ul>
     </div>
 {/if}
 
-{#snippet tocList()}
-    <ul class="toc-list" bind:this={container}></ul>
-{/snippet}
-
 <style>
     :global {
         body {
@@ -95,14 +89,10 @@
             backdrop-filter: blur(var(--blur-radius-background));
         }
 
-        .sticky-toc {
-            position: sticky;
-            top: 20px;
-        }
-
         .toc-list {
             padding: 0;
             margin: 0;
+            width: 100%;
         }
         
         .toc-list a {

src/routes/blog/[year]/[date]/+page.svelte

@@ -1,7 +1,7 @@
 <script>
     import Banner2 from "$lib/banner2.svelte";
     import Content from "$lib/viewport/content.svelte";
-    import TableOfContents from "$lib/table-of-contents.svelte";
+    import TableOfContents from "$lib/components/table-of-contents.svelte";
 
 	export let data;
 </script>

src/routes/meta/about/+page.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
     import Banner2 from "$lib/banner2.svelte";
     import Content from "$lib/viewport/content.svelte";
-    import TableOfContents from "$lib/table-of-contents.svelte";
+    import TableOfContents from "$lib/components/table-of-contents.svelte";
     import LinkList, { type LinkEntry } from "$lib/lists/link-list.svelte";
 
     let favouriteAlbums: LinkEntry[] = [

src/routes/projects/+page.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
     import Banner2 from "$lib/banner2.svelte";
-    import TableOfContents from "$lib/table-of-contents.svelte";
+    import TableOfContents from "$lib/components/table-of-contents.svelte";
     import { type Project, games, hardware, apps, music } from './projects';
     import LinkList from "$lib/lists/link-list.svelte";
     import Content from "$lib/viewport/content.svelte";

src/routes/projects/daisyfm/+page.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
     import Banner2 from "$lib/banner2.svelte";
     import Content from "$lib/viewport/content.svelte";
-    import TableOfContents from "$lib/table-of-contents.svelte";
+    import TableOfContents from "$lib/components/table-of-contents.svelte";
 </script>
 
 <svelte:head>

src/routes/projects/projectn5/devlog/[year]/[date]/+page.svelte

@@ -1,7 +1,7 @@
 <script>
     import Banner2 from "$lib/banner2.svelte";
     import Content from "$lib/viewport/content.svelte";
-    import TableOfContents from "$lib/table-of-contents.svelte";
+    import TableOfContents from "$lib/components/table-of-contents.svelte";
 
 	export let data;
 </script>