Launcher dialog box using all screen width

Release Type: GitHub

Version: master

Describe the bug
I had a messagebox in launcher and the dialog box was a single line.
Dialog box ended up being larger than my 5K ultra-wide screen, OK button on another monitor

To Reproduce
Any long message do.
Example you can add in launcher:

await ServiceProvider.Get<IDialogService>().MessageBoxAsync(
        string.Format(Strings.ErrorStartingProcess, e.FormatSummary(true)),
        MessageBoxButton.OK, MessageBoxImage.Error);

Expected behavior
The text wraps inside a window of reasonable width.
Long content can be scrolled.

Screenshots

On monitor 1

On monitor 2