extract auth to lib

src/utils/verifiedEmail.ts

@@ -0,0 +1,20 @@
+type VerifiedEmailVisibilityOptions = {
+  verifiedAt: string | null;
+  persistedEmail: string;
+  currentEmail: string;
+  isEditing: boolean;
+};
+
+export function shouldShowVerifiedEmailBadge(options: VerifiedEmailVisibilityOptions): boolean {
+  const { verifiedAt, persistedEmail, currentEmail, isEditing } = options;
+
+  if (!verifiedAt) {
+    return false;
+  }
+
+  if (!isEditing) {
+    return true;
+  }
+
+  return persistedEmail.trim() === currentEmail.trim();
+}