ExtJS5 grid winthin TabPanel aligns rows to left

Please click the Button.

http://ext.ilhan.name/

The source code is here: http://ift.tt/1yCWXf9

In Firefox and IE11 it looks like this: http://ift.tt/1Dskdm0

The json files are valid according to http://jsonlint.com

It works in Chrome but it looks odd. Some parts are missing like row colors and column separator lines.

What I'm missing?

Edit: Edit: Here is all the codes if you want to download http://ift.tt/1EtkG5V You can run sencha web start.

ExtJS5 grid winthin TabPanel aligns rows to left