System controls only available under secure mode

[aminick]

System tenant will grant additional controls in the Dashboard such as tenant picker. However, this control is currently only available under secure mode via npm run start:https. Under insecure mode, this control can not be granted because the Dashboard can not identify tenant information.

In secure mode, tenant information is identified from the input token.
In insecure mode, the default tenant is the one defined in cluster config, and tenant information is not identified.

It would be ideal that such controls is available both in secure and insecure mode. The Dashboard should identify tenant information in insecure mode.