Include Manage Connections and Gateways in the new tab navigation

[frithjof_v]

The new horizontal tab navigation in the Fabric experience is great.

I wish Manage Gateways and Connections would also open up as a tab when I go to the Manage Gateways and Connections page. This way, I could seamlessly navigate between the Manage Gateways and Connections tab and the other items tabs. 

This seamless tab navigation would be especially useful when comparing connection IDs used in workspace items and variable library to the actual connection IDs found in the Manage Gateways and Connections page.