clean up api for Cryptpad.confirm

www/common/common-interface.js

@@ -285,7 +285,7 @@ define([
         });
     };
 
-    UI.confirm = function (msg, cb, opt, force, styleCB) {
+    UI.confirm = function (msg, cb, opt, force) {
         cb = cb || function () {};
         opt = opt || {};
 
@@ -328,8 +328,8 @@ define([
         document.body.appendChild(frame);
         setTimeout(function () {
             UI.notify();
-            if (typeof(styleCB) === 'function') {
-                styleCB($ok.closest('.dialog'));
+            if (typeof(opt.done) === 'function') {
+                opt.done($ok.closest('.dialog'));
             }
         });
     };

www/register/main.js

@@ -217,9 +217,10 @@ define([
                 cancelClass: 'safe',
                 okClass: 'danger',
                 reverseOrder: true,
-            }, true, function ($dialog) {
-                $dialog.find('> div').addClass('half');
-            });
+                done: function ($dialog) {
+                    $dialog.find('> div').addClass('half');
+                },
+            }, true);
             }, 150);
         });