small css fix

Hi,
There was a small css fix for sweetalert.css. Invalid porperties were there so I fixed it :)

client/plugins/sweetalert/sweetalert.css

@@ -70,12 +70,12 @@ body.stop-scrolling {
     overflow: hidden;
     padding: 0 10px;
     max-height: 0;
-    webkit-transition: padding 0.15s, max-height 0.15s;
+    -webkit-transition: padding 0.15s, max-height 0.15s;
     transition: padding 0.15s, max-height 0.15s; }
     .sweet-alert .sa-error-container.show {
       padding: 10px 0;
       max-height: 100px;
-      webkit-transition: padding 0.2s, max-height 0.2s;
+      -webkit-transition: padding 0.2s, max-height 0.25s;
       transition: padding 0.25s, max-height 0.25s; }
     .sweet-alert .sa-error-container .icon {
       display: inline-block;