fix: @theme default

components/style/themes/default.less

@@ -1,6 +1,8 @@
 /* stylelint-disable at-rule-empty-line-before,at-rule-name-space-after,at-rule-no-unknown */
 @import '../color/colors';
 
+@theme: default;
+
 // The prefix to use on all css classes from ant.
 @ant-prefix: ant;