feat: refactor website icon handling by moving utility functions to a dedicated module

webapp/src/lib/website-utils.ts

@@ -0,0 +1,24 @@
+import type { Cipher } from './types';
+
+export function firstCipherUri(cipher: Cipher): string {
+  const uris = cipher.login?.uris || [];
+  for (const uri of uris) {
+    const raw = uri.decUri || uri.uri || '';
+    if (raw.trim()) return raw.trim();
+  }
+  return '';
+}
+
+export function hostFromUri(uri: string): string {
+  if (!uri.trim()) return '';
+  try {
+    const normalized = /^https?:\/\//i.test(uri) ? uri : `https://${uri}`;
+    return new URL(normalized).hostname || '';
+  } catch {
+    return '';
+  }
+}
+
+export function websiteIconUrl(host: string): string {
+  return `/icons/${encodeURIComponent(host)}/icon.png?fallback=404`;
+}