Show different title when creating first email

[MAILPOET-2383]

assets/js/src/newsletters/types.jsx

@@ -245,7 +245,7 @@ class NewsletterTypes extends React.Component {
     return (
       <div>
         <link rel="prefetch" href={window.mailpoet_editor_javascript_url} as="script" />
-        <h1>{MailPoet.I18n.t('pickCampaignType')}</h1>
+        <h1>{MailPoet.I18n.t(window.mailpoet_newsletters_count === 0 ? 'createFirstEmailTitle' : 'pickCampaignType')}</h1>
 
         <Breadcrumb step="type" />
 

views/newsletters.html

@@ -170,6 +170,7 @@
     'draftNewsletterTitle': __('Subject'),
     'draftPostNotificationTitle': __('The last [newsletter:total] posts from our blog'),
     'pickCampaignType': __('Select type of email'),
+    'createFirstEmailTitle': __('Create your first email'),
     'seeVideoGuide': __('See video guide'),
     'premiumFeature': __('This is a Premium feature.'),
     'learnMore': __('Learn more'),