Added Items and Dashboard

app/views/layouts/application.html.erb

@@ -66,7 +66,7 @@
             <span class="collapse-text ml-3 transition-all duration-300 ease-in-out max-w-[180px] opacity-100 overflow-hidden whitespace-nowrap">Dashboard</span>
           <% end %>
 
-          <%= link_to "", class: nav_link_class("items") do %>
+          <%= link_to items_path, class: nav_link_class("items") do %>
             <svg class="h-5 w-5 shrink-0 ml-0.5" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" d="M8.25 6.75h12M8.25 12h12m-12 5.25h12M3.75 6.75h.007v.008H3.75V6.75Zm.007 5.25H3.75v.008h.008V12Zm0 5.25H3.75v.008h.008v-.008Z" /></svg>
             <span class="collapse-text ml-3 transition-all duration-300 ease-in-out max-w-[180px] opacity-100 overflow-hidden whitespace-nowrap">Bestandsliste</span>
           <% end %>
@@ -128,7 +128,7 @@
         </header>
 
         <!-- INHALT DER JEWEILIGEN VIEW -->
-        <main class="p-4 md:p-6 flex-1 max-w-5xl w-full mx-auto">
+        <main class="p-4 md:p-6 flex-1 w-full mx-auto px-4 md:px-8">
           <!-- Platzhalter für Flash-Meldungen (z.B. erfolgreiches Speichern) -->
           <% flash.each do |type, message| %>
             <div class="mb-4 p-4 text-sm rounded-lg border <%= type == 'notice' ? 'bg-green-50 text-green-800 border-green-200' : 'bg-red-50 text-red-800 border-red-200' %>">