[Web] added translations for various strings (#4173)

* [Web] translated synchronization "open logs" str

Signed-off-by: Kristian Feldsam <feldsam@gmail.com>

* [Web] translated selectbox "nothing selected" str

Signed-off-by: Kristian Feldsam <feldsam@gmail.com>

* [Web] translated Check against haveibeenpwned.com

Signed-off-by: Kristian Feldsam <feldsam@gmail.com>

data/web/js/site/mailbox.js

@@ -966,7 +966,7 @@ jQuery(function($){
         },
         success: function (data) {
           $.each(data, function (i, item) {
-            item.log = '<a href="#syncjobLogModal" data-toggle="modal" data-syncjob-id="' + encodeURIComponent(item.id) + '">Open logs</a>'
+            item.log = '<a href="#syncjobLogModal" data-toggle="modal" data-syncjob-id="' + encodeURIComponent(item.id) + '">' + lang.open_logs + '</a>'
             item.user2 = escapeHtml(item.user2);
             if (!item.exclude > 0) {
               item.exclude = '-';