Redirect login to home, reorder cookbook menu, fix sticky header+filter in shopping list, update modal unit row and clean item view

app/templates/cookbook.html

@@ -494,12 +494,6 @@
 
     <!-- Desktop Buttons (auf Bildschirmen > 768px) -->
     <div class="cb-nav-actions desktop-nav-actions">
-      <a href="/" class="cb-nav-btn" title="Menü-Übersicht öffnen">
-        <span>🏠</span> <span>Menü</span>
-      </a>
-      <a href="/shopping-list" class="cb-nav-btn" title="Einkaufsliste öffnen">
-        <span>🛒</span> <span>Einkaufsliste</span>
-      </a>
       <button type="button" onclick="openMealPlanModal(event)" class="cb-nav-btn" title="Wochenmenü-Plan öffnen">
         <span>📅</span> <span>Wochenplan</span>
       </button>
@@ -512,6 +506,12 @@
       <button type="button" onclick="openPrintModal(event)" class="cb-nav-btn" title="Druckansicht & PDF">
         <span>🖨️</span> <span>Drucken</span>
       </button>
+      <a href="/" class="cb-nav-btn" title="Zur Startseite">
+        <span>🏠</span> <span>Startseite</span>
+      </a>
+      <a href="/shopping-list" class="cb-nav-btn" title="Einkaufsliste öffnen">
+        <span>🛒</span> <span>Einkaufsliste</span>
+      </a>
       <a href="/logout" class="cb-nav-btn cb-nav-btn-logout" title="Abmelden">
         <span>🚪</span> <span>Abmelden</span>
       </a>
@@ -523,12 +523,6 @@
         <span>⋮</span>
       </button>
       <div id="cb-mobile-menu" class="cb-mobile-dropdown">
-        <a href="/" class="cb-mobile-item">
-          <span>🏠</span> <span>Menü-Übersicht</span>
-        </a>
-        <a href="/shopping-list" class="cb-mobile-item">
-          <span>🛒</span> <span>Einkaufsliste</span>
-        </a>
         <button type="button" onclick="handleMobileMenuAction(openMealPlanModal)" class="cb-mobile-item">
           <span>📅</span> <span>Wochenmenü-Plan</span>
         </button>
@@ -542,6 +536,13 @@
           <span>🖨️</span> <span>Drucken & PDF</span>
         </button>
         <hr class="cb-mobile-divider">
+        <a href="/" class="cb-mobile-item">
+          <span>🏠</span> <span>Startseite</span>
+        </a>
+        <a href="/shopping-list" class="cb-mobile-item">
+          <span>🛒</span> <span>Einkaufsliste</span>
+        </a>
+        <hr class="cb-mobile-divider">
         <a href="/logout" class="cb-mobile-item cb-mobile-logout">
           <span>🚪</span> <span>Abmelden</span>
         </a>