Improvements to SSO users onboarding

This release improves the process of onboarding new users through SSO. We've also simplified the context menu when editing arrays on the Data Editor.

Features:

• Better workflow to SSO onboarding
• Simplified context menu for editing arrays. The option to add a new structure is now a sub-context menu
• Added support for Referrer-Policy and Permissions-Policy as custom headers

Fixes:

• Fixed unclear error message when failing to login with a provider