rustdoc: Fix links in trait impl docs

Author: SpecificProtagonist

src/librustdoc/html/static/js/main.js

@@ -1179,8 +1179,10 @@ function preLoadCss(cssUrl) {
 
 onEachLazy(document.querySelectorAll(".toggle > summary:not(.hideme)"),el=>{
 // @ts-expect-error
+// Clicking on the summary's contents should not collapse it,
+// but links within should still fire.
 el.addEventListener("click",e=>{
-if(e.target.tagName!=="SUMMARY"&&e.target.tagName!=="A"){
+if(!e.target.matches("summary, a, a *")){
 e.preventDefault();
 }
 });