style: change table row color when selected in dark theme (#3759)

components/style/themes/default.less

@@ -530,9 +530,9 @@
 @table-body-sort-bg: rgba(0, 0, 0, 0.01);
 @table-row-hover-bg: @primary-1;
 @table-selected-row-color: inherit;
-@table-selected-row-bg: #fafafa;
+@table-selected-row-bg: @primary-1;
 @table-body-selected-sort-bg: @table-selected-row-bg;
-@table-selected-row-hover-bg: @table-selected-row-bg;
+@table-selected-row-hover-bg: darken(@table-selected-row-bg, 2%);
 @table-expanded-row-bg: #fbfbfb;
 @table-padding-vertical: 16px;
 @table-padding-horizontal: 16px;