Fix to hide the label if no identifiers for Book Show LiveView.

lib/decentralised_book_index_web/live/book_live/show.ex

@@ -88,14 +88,16 @@ defmodule DecentralisedBookIndexWeb.BookLive.Show do
         <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Language</dt>
         <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.language}</dd>
       </dl>
-      <dl>
-        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Identifiers</dt>
-        <%= for bid <- @book.bids do %>
-          <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">
-            {bid.type}: {bid.bid}
-          </dd>
-        <% end %>
-      </dl>
+      <%= if not Enum.empty?(@book.bids) do %>
+        <dl>
+          <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Identifiers</dt>
+          <%= for bid <- @book.bids do %>
+            <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">
+              {bid.type}: {bid.bid}
+            </dd>
+          <% end %>
+        </dl>
+      <% end %>
       <%= if not is_nil(@book.dbi_server) do %>
         <dl>
           <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">From Server</dt>