fix(planner): translate MealActionSheet button labels to German

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/lib/planner/MealActionSheet.svelte

@@ -79,7 +79,7 @@
           style="width:100%;background:var(--orange-tint);border:1px solid #FBCDA4;color:var(--orange-dark);font-family:var(--font-sans);font-size:13px;font-weight:500;border-radius:var(--radius-lg);padding:12px;text-align:center;cursor:pointer"
           onclick={onswap}
         >
-          ↻ Swap this meal
+          ↻ Gericht tauschen
         </button>
 
         {#if slot.recipe}
@@ -87,14 +87,14 @@
             href="/recipes/{slot.recipe.id}/cook"
             style="display:block;width:100%;background:var(--green-tint);border:1px solid var(--green-light);color:var(--green-dark);font-family:var(--font-sans);font-size:13px;font-weight:500;border-radius:var(--radius-lg);padding:12px;text-align:center;box-sizing:border-box;text-decoration:none"
           >
-            🍳 Cook now
+            🍳 Jetzt kochen
           </a>
 
           <a
             href="/recipes/{slot.recipe.id}"
             style="display:block;width:100%;background:var(--color-subtle);border:1px solid var(--color-border);color:var(--color-text-muted);font-family:var(--font-sans);font-size:13px;font-weight:500;border-radius:var(--radius-lg);padding:12px;text-align:center;box-sizing:border-box;text-decoration:none"
           >
-            👁 View recipe
+            👁 Rezept ansehen
           </a>
         {/if}
 
@@ -103,7 +103,7 @@
           style="width:100%;background:none;border:none;color:var(--color-text-muted);font-family:var(--font-sans);font-size:13px;text-align:center;cursor:pointer;padding:12px"
           onclick={oncancel}
         >
-          Cancel
+          Abbrechen
         </button>
       </div>
     </div>