fix: select for languages

bo/src/stores/product.ts

@@ -29,15 +29,15 @@ export const useProductStore = defineStore('product', () => {
   const error = ref<string | null>(null)
   const productDescription = ref()
 
-  async function getProductDescription(langId: number, productID: number) {
+  async function getProductDescription(langId: number | null, productID: number) {
     loading.value = true
     error.value = null
     try {
       const response = await useFetchJson<ProductDescription>(
-        `/api/v1/restricted/product-translation/get-product-description?productID=${productID}&productLangID=${langId}`
+        `/api/v1/restricted/product-translation/get-product-description?productID=${productID}&productLangID=${langId ? langId : settingStore.shopDefaultLanguage}`
       )
       productDescription.value = response.items
-  
+
     } catch (e: unknown) {
       error.value = e instanceof Error ? e.message : 'Failed to load product description'
     } finally {