update yshop-drink-uniapp-vue3/pages/menu/menu.vue.

同一个商品加入购物车，数量未合并bug

Signed-off-by: df <664791309@qq.com>

yshop-drink-uniapp-vue3/pages/menu/menu.vue

@@ -534,7 +534,7 @@ const calcSize = () => {
 const handleAddToCart = (cate, newGood, num) =>{ //添加到购物车
 	const index = cart.value.findIndex(item => {
 		if (newGood) {
-			return (item.id === newGood.id) && (item.props_text === good.value.valueStr)
+			return (item.id === newGood.id) && (item.valueStr === good.value.valueStr)
 		} else {
 			return item.id === newGood.id
 		}