Fix button icons

customize.dist/src/less2/include/forms.less

@@ -113,7 +113,7 @@
         transition: none;
 
         i, .fa, .cptools {
-            &:not(:last-child) {
+            &:not(.nomargin) {
                 margin-right: 5px;
             }
         }

www/form/inner.js

@@ -3920,7 +3920,7 @@ define([
                         framework.localChange();
                         refreshEndDate();
                     });
-                    var cancel = h('button.btn.btn-danger', h('i.fa.fa-times'));
+                    var cancel = h('button.btn.btn-danger', h('i.fa.fa-times.nomargin'));
                     $(cancel).click(function () {
                         refreshEndDate();
                     });