style(element-ui.scss): 修复常用菜单

src/assets/styles/element-ui.scss

@@ -59,7 +59,7 @@
     margin: 0 auto;
     display: flex;
     flex-direction: column;
-    height: 50vh;
+    height: 60vh;
     padding: 20px;
     .el-dialog__header{
       padding-top: 10px;
@@ -67,7 +67,7 @@
     }
 
     .el-dialog__body {
-      margin-top: 20px;
+      flex: 1;
       height: calc(50vh - 40px - 32px);
     }
   }