Fix calendar not loading after latest commit

www/calendar/inner.js

@@ -19,7 +19,7 @@ define([
     '/calendar/export.js',
     '/calendar/recurrence.js',
     '/lib/datepicker/flatpickr.js',
-    '/lib/calendar/date-picker.js',
+    'tui-date-picker',
 
     '/common/inner/share.js',
     '/common/inner/access.js',

www/common/notifications.js

@@ -8,7 +8,7 @@ define([
     '/common/common-constants.js',
     '/customize/messages.js',
     '/customize/pages.js',
-    '/lib/calendar/date-picker.js',
+    'tui-date-picker'
 ], function($, h, Hash, UI, UIElements, Util, Constants, Messages, Pages, DatePicker) {
 
     var handlers = {};

www/form/inner.js

@@ -23,7 +23,7 @@ define([
     '/common/text-cursor.js',
     'cm/lib/codemirror',
     '/components/chainpad/chainpad.dist.js',
-    '/lib/calendar/date-picker.js',
+    'tui-date-picker',
 
     '/common/inner/share.js',
     '/common/inner/access.js',