Improve threads navigation

src/routes/+page.svelte

@@ -124,5 +124,7 @@
         {threadStore.loadingMore ? "Loading…" : "Show more"}
       </button>
     </div>
+  {:else if rows.length > 0}
+    <p class="py-6 text-center text-sm text-neutral-400">No more discussions</p>
   {/if}
 </div>

src/routes/thread/[id]/+page.svelte

@@ -283,6 +283,27 @@
       <div
         class="relative z-10 bg-white pb-1 md:sticky md:-top-6 md:-mx-10 md:px-10 md:pt-6 md:-mt-6"
       >
+        <a
+          href="/"
+          class="mb-1 inline-flex items-center gap-1 text-sm text-neutral-400 hover:text-brand"
+        >
+          <svg
+            xmlns="http://www.w3.org/2000/svg"
+            class="h-4 w-4"
+            fill="none"
+            viewBox="0 0 24 24"
+            stroke="currentColor"
+            stroke-width="1.8"
+            aria-hidden="true"
+          >
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              d="M15.75 19.5 8.25 12l7.5-7.5"
+            />
+          </svg>
+          Discussions
+        </a>
         <h1 class="text-[1.65rem] text-brand leading-7">{detail.title}</h1>
         {#if isScrolled}
           <div