fix udfs assignment and task instance page jump #1789 (#1791)

* merge dev branch front-end code

* fix udfs assignment

* Fix task instance page jump

* fix udfs assignment and task instance page jump #1789

dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.scss

@@ -157,6 +157,9 @@
       background: #F2F3F7;
       position: relative;
       border-radius: 0 3px 0 0;
+      .ans-btn-text {
+        color: #337ab7;
+      }
       .assist-btn {
         position: absolute;
         left: 10px;

dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/formModel/tasks/_source/udfs.vue

@@ -74,7 +74,7 @@
             _.map(udfs, v => {
               _.map(this.udfsList, v1 => {
                 if (parseInt(v) === v1.id) {
-                  arr.push(v1)
+                  arr.push(parseInt(v))
                 }
               })
             })

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

@@ -81,6 +81,7 @@
        */
       _onQuery (o) {
         this.searchParams = _.assign(this.searchParams, o)
+        this.searchParams.processInstanceId = ''
         if (this.searchParams.taskName) {
           this.searchParams.taskName = ''
         }