Ensure mobile width of GsCategoryTile
This makes the iconless GsCategoryTile
fit on a mobile screen.
The old window width is 378px which is too wide.
GsCategoryTile: 140px
+ padding iconless 2* 15px
= 170 * 2 = 340px flow box content
+ GsFlowBox column spacing: 14px
+ box_overview margins: 12*2
= 378 px minimum width