display buttons according to the order in application_config.js

customize.dist/application_config.js

@@ -4,7 +4,7 @@ define(function() {
     /* Select the buttons displayed on the main page to create new collaborative sessions
      * Existing types : pad, code, poll, slide
      */
-    config.availablePadTypes = ['pad', 'code', 'poll', 'slide'];
+    config.availablePadTypes = ['pad', 'code', 'slide', 'poll'];
 
     return config;
 });

customize.dist/main.js

@@ -28,8 +28,9 @@ define([
     var forgetPad = Cryptpad.forgetPad;
 
     var displayCreateButtons = function () {
+        var $parent = $('#buttons');
         Config.availablePadTypes.forEach(function (el) {
-            $('#create-' + el).show();
+            $('#create-' + el).detach().appendTo($parent).show();
         });
     };