Messages improve - #8661

construct QString without concat
return aftershowing fatal error dialog
Enable Translation for user facing strings

   use app name for title
   create message using append
   enable translations

    add app name to dialog title
    enable translations

      add the app name into the title
      use QString::append to add to the string
      enable translations

 slight reword for Already Connected error
 use QString::append to add to the message
 create a QMessageBox::warning style box for these errors
 enable translations

…y method

…ranslations

…enable translations