The default size of modules table in tiapp is reduced

After the fix for TISTUD-7018, the size of the tiapp modules table depends on the number of added modules. If there are no modules, then the size is shrinked, and if we add more than 6 modules, then it overflows.

The tiapp modules table has to set a default size (as earlier) and as number of modules in the table increases, user should be able to scroll through the list.