Set height for completion widget

[Roffild]

    gui_completion_height = Integer(0, config=True,
        help="""
        Set Height for completion.

        'droplist'
            Height in pixels.
        'ncurses'
            Maximum number of rows.
        """
    )

In my confing now:

c.ConsoleWidget.gui_completion = 'droplist'
c.ConsoleWidget.gui_completion_height = 600

[Roffild]

[ccordoba12]

Hey @Roffild, thanks for the ping, I just missed your work when you submitted it.

To proceed, please merge your branch with the latest master so you can solve the merge conflicts. If you need help with that, let us know.

[Roffild]

Finish