Improved Sana Commerce Startup Wizard

The Sana Commerce Startup Wizard is a tool that is not often used as it is mainly for the initial setup of a Sana webstore, but we still continue to improve it to make it easier and faster for new Sana customers to set up a webstore.

In this release we made some fields of the Sana Commerce Startup Wizard required and added validation. We also removed some optional fields or those that are mainly used with the default values, but they can be reconfigured on the Webshop Card, if necessary.