搜索表单2样式调整

src/components/app-form-item2/app-form-item2.less

 .app-form-item2 {
+  border-bottom: 0.3px solid #e6e8ef;
   .app-form-item2-search {
     width: 100%;
     font-size: 15px;
@@ -45,7 +46,7 @@
       position: absolute;
       left: 0px;
       opacity: 0.8;
-      font-size: 12px;    
+      font-size: 12px;
       bottom: 0px;
       color: #ea3424;
       z-index: 10;