added alt text to almost all images

src/lib/table-of-contents.svelte

@@ -54,14 +54,18 @@
 
 {#if disableStickyScrolling}
 <div class="toc-container notched">
-    <ul class="toc-list" bind:this={container}></ul>
+    {@render tocList()}
 </div>
 {:else}
 <div class="toc-container notched sticky-toc">
-    <ul class="toc-list" bind:this={container}></ul>
+    {@render tocList()}
 </div>
 {/if}
 
+{#snippet tocList()}
+    <ul class="toc-list" bind:this={container}></ul>
+{/snippet}
+
 <style>
     :global {
         .toc-container {
@@ -87,8 +91,8 @@
         }
         .toc-list li a {
             width: 100%;
-            padding-top: 8px;
-            padding-bottom: 8px;
+            padding-top: 4px;
+            padding-bottom: 4px;
             padding-right: 24px;
             display: inline-block;
             color: var(--color-text);