bolt, device-dialog: Don't use & when "and" makes sense
The "Connected & Authorized" string used an unescaped ampersand character which was causing GTK to warn "Failed to set text 'Connected & Authorised' from markup due to error parsing markup: Error on line 1: Entity did not end with a semicolon; most likely you used an ampersand character without intending to start an entity — escape ampersand as &".
Instead of escaping the ampersand here, let's just use "and" directly as this conveys the same meaning and makes it easier to avoid translation errors with the markup.