fix: 修复svgicon focus时会有外轮廓的问题

src/components/SvgIcon/SvgIcon.vue

@@ -57,6 +57,7 @@
     overflow: hidden;
     vertical-align: -0.15em;
     fill: currentColor;
+    outline-width: 0;
 
     &::after {
       position: absolute;