Fix inline SVG.

site/static/docs/4.3/assets/scss/_sidebar.scss

@@ -49,7 +49,7 @@
     height: .875rem;
     margin-right: .25rem;
     content: "";
-    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" role="img"><path stroke="currentColor" stroke-width="2" d="M5 14l6-6-6-6" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"/></svg>');
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3E%3C/svg%3E");
     background-repeat: no-repeat;
     background-position: center center;
     opacity: .5;