fix issue

web_src/less/index.less

@@ -1,6 +1,6 @@
 @import "~highlight.js/styles/github.css";
 @import "./vendor/gitGraph.css";
-@import "./vendor/fancyapp.css";
+@import "./vendor/fancyapp.less";
 // @import "~/remixicon/fonts/remixicon.css";
 @import "_svg";
 @import "_tribute";