Connect form cannot be submitted using only keyboard

Observed behavior

When connecting to the router, after filling Address and Port, the only way to submit the form is to click the Connect button with mouse.

Pressing enter while input fields of the form are focused does nothing.

Tabbing to the Connect button is difficult, because the Connect button does not have a distinct focused appearance. Same is true for the Autostart checkbox.

Pressing enter or space while the button is focused does click it. But there is no visual indication of the fact that the button is focused, as stated already.

Expected behavior

The connect form is a short form and the risk of accidental submission is small, so I'd expect submitting with enter from anywhere in the form would be enabled.

Proper handling of focus is important usability concern. Depending whether or not is accessibility considered important for dispatch-console, this may deserve its own Jira.