Interactive page size and hint how to quit

[edlerd]

Done

• improve interactive mode to have dynamic page size. This helps if the terminal is very small
• add hint to interactive mode, that you can cancel with ESC key to address interactive CLI has no quit or exit command. #1414

[raineorshine]

Thanks for your contribution!

The dynamic page size looks good.

Thank you for the suggestion for the interactive mode help, although I think in this case I would like to keep the instructions minimal and not have to print something that should be fairly obvious to most people. Interactive mode can be cancelled with Escape or Ctrl + C which are both highly conventional, and per #1414 I would be open to the addition of q to quit. Again just a personal preference to keep the instructions as terse as possible.