fix: text compose papercuts (#270)

* make fixes

* cleanup

js/desktop/src/lib/link-metadata.ts

@@ -14,3 +14,11 @@ export function extractUrls(text: string): string[] {
   // should only yield a single preview card.
   return Array.from(new Set(Array.from(text.matchAll(URL_REGEX), (m) => m[0])));
 }
+
+export function domainFromUrl(url: string): string {
+  try {
+    return new URL(url).hostname.replace(/^www\./, '');
+  } catch {
+    return url;
+  }
+}