fix: '修改数据字典表格样式'

src/pages/dataCenter/dictionary/WebDic.less

 .WebDic {
   .item {
-    margin-bottom: 20px;
+    margin-bottom: 10px;
   }
   th.column {
     background-color: #9ec3e2;
@@ -30,10 +30,11 @@
     }
   }
   .ant-table-body {
-    max-height: calc(100vh - 300px) !important;
-    min-height: calc(100vh - 300px);
+    max-height: calc(100vh - 277px) !important;
+    min-height: calc(100vh - 277px);
     margin-right: -6px;
     width: 100%;
+    border-bottom: 1px solid #f0f0f0;
   }
   .ant-table-pagination.ant-pagination {
     margin: 10px 0 !important;