feat: change font-family

Author: SSShooter

src/index.less

@@ -3,7 +3,8 @@
 .mind-elixir {
   position: relative;
   -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-  // font-family: "微软雅黑";
+  font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Microsoft YaHei, Source Han Sans SC, Noto Sans CJK SC,
+    WenQuanYi Micro Hei, sans-serif;
   .hyper-link {
     text-decoration: none;
   }