chore: change the text above the code snippet to make it more accurate

src/fragments/lib/auth/native_common/user_attributes/common.mdx

@@ -46,9 +46,9 @@ import flutter8 from '/src/fragments/lib/auth/flutter/user_attributes/30_confirm
 
 <Fragments fragments={{ flutter: flutter8 }} />
 
-## Resend verification code
+## Send user attribute verification code
 
-If the code has expired or the user needs to resend the confirmation code, invoke the resend api as shown below:
+If an attribute needs to be verified while the user is authenticated, invoke the send api as shown below:
 
 import ios9 from '/src/fragments/lib/auth/ios/user_attributes/40_resend_code.mdx';