fix: [Tooltip] 修改字体

Author: liyuan-meng

src/components/tooltip/index.less

@@ -63,6 +63,7 @@
   left: 0;
   opacity: 0;
   transition: opacity 0.25s ease-in;
+  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Helvetica Neue, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
 
   &.no-arrow:after {
     display: none !important;