rustdoc: Correctly handle long crate names on mobile

Author: GuillaumeGomez

src/librustdoc/html/static/css/rustdoc.css

@@ -1943,13 +1943,8 @@ in src-script.js and main.js
 		   pixels to avoid overflowing the topbar when the user sets a bigger
 		   font size. */
 		font-size: 24px;
-	}
-
-	.mobile-topbar h2 a {
-		display: block;
-		text-overflow: ellipsis;
-		overflow: hidden;
 		white-space: nowrap;
+		text-overflow: ellipsis;
 	}
 
 	.mobile-topbar .logo-container > img {

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

@@ -45,7 +45,7 @@ function setMobileTopbar() {
         const mobileTitle = document.createElement("h2");
         mobileTitle.className = "location";
         if (hasClass(document.querySelector(".rustdoc"), "crate")) {
-            mobileTitle.innerText = `Crate ${window.currentCrate}`;
+            mobileTitle.innerHTML = `Crate <a href="#">${window.currentCrate}</a>`;
         } else if (locationTitle) {
             mobileTitle.innerHTML = locationTitle.innerHTML;
         }