Server instances overview in Studio Settings & Renewed Core Settings

Titles:

• Improved studio overview

• Enhanced server instances overview in studio settings

• Enhanced Studio Overview in Visual Radio

https://github.com/vra-bv/cloud-front/pull/214

https://github.com/vra-bv/cloud-front/pull/250

And also the clear core overview in settings

/settings/studio/[]/core

https://github.com/vra-bv/cloud-front/pull/250

1. Add “destructive” type to all Delete dropdown items to improve UX for users, differentiate the items