Add media query styles for printing

[one-lithe-rune]

Motivation

Printing in story mode still includes a lot the UI, and the main text doesn't seem to flow beyond the first page in non-aesthetic mode (at least for me).

This should fix that for all modes.

Changes

• Hides top menu when printing.
• Hides input row and chat input holder when printing
• Hides bottom info/status line when printing.
• Hides action menu (if displayed) when printing.
• Allows main text/chat history to flow across multiple pages when printing.

Possible Problems/Concern

• I've targeted this PR at dev branch, I'm not sure whether that is how you want things or it should got to main.

[one-lithe-rune]

LGTM although I would prefer it to only apply these styles when printable view is toggled, in case someone actually wants to print the original UI. But it's fine for now.

Just tried tying them to the unlock scroll height toggle. I can put up another PR for that if you want.

But...

...should 'unlock scroll height' and 'don't print UI when printing' actually be tied together? They would make more sense to me as separate options. Your call.

[LostRuins]

Actually I think the current layout is fine, so it's probably good for now unless someone complains.