Update Text Responses

This is the same as this request which is marked as resolved:
https://ww.wp.xz.cn/support/topic/how-to-edit-form-subscribers-language/

I would like to be able to customize the messages that the user sees when signing up. Currently the success message is the only one that is customizable.

For example right now when a user already exists the message returned is ‘Email Address already exists!’ I would like to make this message a little more friendly like ‘Looks like we already have you on our list. Stay tuned for more exciting news.’ or something along those lines.

// This is the success message which gets pulled from an option
‘es_optin_success_message’ => ! empty( $ig_es_form_submission_success_message ) ? $ig_es_form_submission_success_message : __( ‘Successfully Subscribed.’, ’email-subscribers’ ),
// This is the email exists message which is hard coded
‘es_email_exists_notice’ => __( ‘Email Address already exists!’, ’email-subscribers’ )

Thanks