style: fix text wrap

src/components/coupon/CouponCardList.vue

@@ -239,9 +239,11 @@ export default {
   border-bottom-right-radius: 6px;
   .spec-time {
     color: #686868;
+    white-space: nowrap;
   }
   .spec-right {
     margin-left: 10px;
+    white-space: nowrap;
   }
   .spec-available {
     color: #999;