Remove client side external dependencies

[jcralbino]

Is your feature request related to a problem? Please describe.
As a user of the ORB on-prem solution, working in a closed management infrastructure my dedicated management workstation is not able to access internet resources.

When connecting to the ORB on-prem solution, the client browser is requested to download content from:

• https://fonts.googleapis.com/css?family=Montserrat:400,500,700,900|Ubuntu:400,500,700
• https://fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap
• https://fonts.googleapis.com/css?family=Roboto:200,300,400,500,600,700,800&display=swap
• https://www.googletagmanager.com/gtag/js?id=

We should have an option to allow the on-prem solution to use only local content.

Describe the solution you'd like
The browser taking the role of the client connecting to the ORB on-prem server should not be required to download external content( hosted in the Internet).
It should not try to make external DNS queries ( recursive dns is disabled) to be able to access the required resources.

Describe alternatives you've considered

• please provide the resources required within the ORB solution.

Additional context
Add any other context or screenshots about the feature request here.