Some more layout adjustments

app/views/rooms/show.html.erb

@@ -1,9 +1,11 @@
 <% content_for :title, "Standort: #{@room.name}" %>
 
 <% content_for :top_bar_actions do %>
-  <%= link_to rooms_path, class: "py-2 px-3 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 flex items-center gap-1.5 shadow-sm transition" do %>
+  <%= link_to "javascript:history.back()", class: "py-2 px-3 text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 flex items-center gap-1.5 shadow-sm transition" do %>
     <svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" d="M10.5 19.5L3 12m0 0l7.5-7.5M3 12h18" /></svg>
-    Alle Räume
+    <div class="hidden md:inline">
+      Zurück
+    </div>
   <% end %>
 <% end %>