[FIX] undo hover color

src/components/common/CartItem.vue

@@ -161,6 +161,8 @@
                             color: #ffc107
                         &.fa-money:hover
                             color: #4caf50
+                        &.fa-undo:hover
+                            color: #3f51b5
                         &.fa-trash:hover
                             color: #f44336
 </style>