Fixed console messages when remote access is disabled

[lslezak]

Problem

When Agama is booted with the inst.listen_on=localhost which disables remote access then the remote URLs are still printed on the console.

Solution

• Do not print the Agama URLs on the console when remote access has been disabled using the inst.listen_on=localhost boot parameter.
• Print a warning message that the remote access has been disabled.

Testing

• Tested manually

Notes

• It is also possible to limit access to only some network interfaces, but as this will be discussed there is no change regarding this. Let's adapt printing the URLs later after agreeing on the solution.