Refactor speedLabel method in SaleSection component to move it from computed properties to methods for better compatibility with Vue3. This change ensures the function is callable and maintains its intended functionality.

frontend/src/components/falukant/SaleSection.vue

@@ -261,13 +261,6 @@
           return new Date(a.eta).getTime() - new Date(b.eta).getTime();
         });
       },
-        speedLabel(value) {
-          const key = value == null ? 'unknown' : String(value);
-          const tKey = `falukant.branch.transport.speed.${key}`;
-          const translated = this.$t(tKey);
-          if (!translated || translated === tKey) return value;
-          return translated;
-        },
     },
     async mounted() {
       await this.loadInventory();
@@ -284,6 +277,14 @@
       }
     },
     methods: {
+      speedLabel(value) {
+        // Muss in methods liegen (Vue3): in computed wäre es ein Getter und keine aufrufbare Funktion.
+        const key = value == null ? 'unknown' : String(value);
+        const tKey = `falukant.branch.transport.speed.${key}`;
+        const translated = this.$t(tKey);
+        if (!translated || translated === tKey) return value;
+        return translated;
+      },
       async loadInventory() {
         try {
           const response = await apiClient.get(`/api/falukant/inventory/${this.branchId}`);