feat: add class alias to aliases (#585)

quartz/plugins/transformers/links.ts

@@ -54,6 +54,16 @@ export const CrawlLinks: QuartzTransformerPlugin<Partial<Options> | undefined> =
                 node.properties.className ??= []
                 node.properties.className.push(isAbsoluteUrl(dest) ? "external" : "internal")
 
+                // Check if the link has alias text
+                if (
+                  node.children.length === 1 &&
+                  node.children[0].type === "text" &&
+                  node.children[0].value !== dest
+                ) {
+                  // Add the 'alias' class if the text content is not the same as the href
+                  node.properties.className.push("alias")
+                }
+
                 if (opts.openLinksInNewTab) {
                   node.properties.target = "_blank"
                 }