style: 手机端css优化

src/pages/Workbench/Dashboard/index.less

@@ -5,6 +5,12 @@
   :global(.ant-pro-basicLayout-content) {
     margin: 24px 24px 0 24px !important;
   }
+
+  @media (max-width: 767.98px) {
+    .ant-pro-basicLayout-content {
+      margin: 0 !important;
+    }
+  }
   &::-webkit-scrollbar {
     display: none;
   }