Make MouseWithoutBorders connections dialog useful

[SQL-MisterMagoo]

Description of the new feature / enhancement

Currently the connections dialog is just a few boxes with seemingly random colour borders.

When it doesn't connect, the colours change - that tells me nothing.

Give me an error message that I can do something about.

Make the "Refresh Connections" button actually connect to the other machines.

Scenario when this would be used?

At least once per day when MWB fails to connect

Supporting information

Ok, this is a bit tongue in cheek but for real - connection problems never used to be a thing before it was picked up and added to powertoys
The connections screen is no use to end users at all - and making it actually useful would be amazing