feat(theme):make external link icon with <a> content in one line

src/client/theme-default/styles/components/vp-doc.css

@@ -539,6 +539,10 @@
   max-width: calc((100% - 24px) / 2) !important;
 }
 
+.external-link-icon-enabled a{
+  white-space:nowrap;
+}
+
 /* prettier-ignore */
 :is(.vp-external-link-icon, .vp-doc a[href*='://'], .vp-doc a[target='_blank']):not(.no-icon)::after {
   display: inline-block;