WIP: preserve PR #475 changes before test fixes

frontend/src/components/TagLink.tsx

@@ -158,7 +158,7 @@ const TagLink: FC<Props> = ({ tag,
 	    <span
 		className="ms-1 me-1 shrink-0"
 		style={{ paddingInlineStart: `${ (nestLevel - 1) }rem` }}>
-	      ↳
+	      <span className="tag-tree-arrow">↳</span>
 	    </span>)}
 	{matchedAlias != null && (
 	    <>