Underline the list of workflow operations

dolphinscheduler-ui/src/js/conf/home/pages/projects/pages/definition/pages/list/index.vue

@@ -166,6 +166,9 @@
             right: 0;
             z-index: 2;
           }
+          td:last-child {
+            border-bottom:1px solid #ecf3ff;
+          }
           th:nth-last-child(2) {
             padding-right: 330px;
           }

dolphinscheduler-ui/src/js/conf/home/pages/projects/pages/instance/pages/list/index.vue

@@ -216,6 +216,9 @@
             right: 0;
             z-index: 2;
           }
+          td:last-child {
+            border-bottom:1px solid #ecf3ff;
+          }
           th:nth-last-child(2) {
             padding-right: 260px;
           }

dolphinscheduler-ui/src/js/conf/home/pages/projects/pages/taskInstance/index.vue

@@ -179,6 +179,9 @@
             right: 0;
             z-index: 2;
           }
+          td:last-child {
+            border-bottom:1px solid #ecf3ff;
+          }
           th:nth-last-child(2) {
             padding-right: 80px;
           }