Apply Design System to the Order Detail screen

Description

The Episerver Design System is being applied to the Order management screen. (The system is based on the Google's Material Design System.)

• Restructure current Order detail screen into tabs: Summary, Detail, Payment, Return & Exchange (new)
• Use data tables for Shipment (auto sorting by shipment number, no paging), Item (auto sorting by shipment number, no paging)
• Modal dialog for editing shipment and line items