feat: support long files via pagination or automatic scrolling

[carafelix]

I want to type a long poem, that is beyond a "window" size.
As of now, the following error is thrown:

Window too small to print given textTraceback

I'd like to be able to open large text files and type along, and hopefully, with one of the following behaviors to be supported (if not both via a flag):

• type along and once the typing cursor reaches the last word in the current text window, fill the window with the maximum amount of words that come next in the imported text file.

• add a line-scroll flag that controls how many lines can be typed before start scrolling. Let say it defaults to 4. Once the cursor reach the end of the 4rd line, it removes the first line from the text window and add a new line of text from the imported text

a max-words-per-window flag could be useful also