Add left padding for mailbox conditionally if radiobutton is shown

src/views/app.html

@@ -883,7 +883,7 @@
               </label>
             </div>
 
-            <div style="padding-left: 20px;">
+            <div ng-style="{ 'padding-left': app.manifest.addons.sendmail.optional ? '20px' : '0' }">
               <p ng-bind-html="'app.email.from.enableDescription' | tr:{ domain: app.domain, domainConfigLink: ('/#/email/' + app.domain) }"></p>
 
               <form role="form" name="emailForm" ng-submit="email.submit()" autocomplete="off">