Translate welcome mail

src/mail_templates/welcome_user-html.ejs

@@ -2,28 +2,27 @@
 
 <img src="<%= cloudronAvatarUrl %>" width="128px" height="128px"/>
 
-<h3>Hi <%= user.displayName || user.username || user.email %>,</h3>
-
+<h3>{{ welcomeEmail.salutation }}</h3>
 <h2>{{ welcomeEmail.welcomeTo }}</h2>
 
 <p>
-    <a href="<%= inviteLink %>">Get started</a>.
+  <a href="<%= inviteLink %>">{{ welcomeEmail.inviteLinkAction }}</a>
 </p>
 
 <br/>
 <br/>
 
 <div style="font-size: 10px; color: #333333; background: #ffffff;">
-    <% if (invitor && invitor.email) { %>
-        You are receiving this email because you were invited by <%= invitor.email %>.
-    <% } %>
+<% if (invitor) { -%>
+  {{ welcomeEmail.invitor }}
+<% } -%>
 
-    <br/>
+  <br/>
 
-        Please note that the invite link will expire in 7 days.
-    <br/>
+  {{ welcomeEmail.expireNote }}
+  <br/>
 
-    Powered by <a href="https://cloudron.io">Cloudron</a>
+  Powered by <a href="https://cloudron.io">Cloudron</a>
 </div>
 
 </center>