I keep getting disconnected for inactivity while writing books.

What I expected to happen was...:
This happens A LOT. I'm trying to write books in minecraft and sometimes those books aren't just a few pages long. Sometimes they can be 14+ pages long, but when it gets too long, I get booted from the realm because of inactivity. Even though I'm actively typing in the book literally every second. And the best part of it is, when I log back in to the realm, all 14+ pages are completely gone. This is BEYOND frustrating.

What actually happened was...:
All 15+ pages of text are gone in a few seconds because your realm/server system decides that even though I'm actively typing inside of the book and quill item that i must not be active anymore because I'm not running around punching trees or being shot by skeletons.

Steps to Reproduce:
1. Open a book and quill.
2. Type out a long book that you really thought about and really put a lot of effort into until the game decides that your typing is equivalent to you being in another room on the toilet and then it kicks you off the server for inactivity even though you've clearly been very active.
3. Check your book and quill that you just spent a lot of time typing into and marvel at how the entire thing has been erased and not even one word remains.
4. Rinse and repeat. Or get frustrated that all your hard work and typing was literally flushed down the toilet by the stupidest bug ever to be programmed in to minecraft and stop playing minecraft all together for the day or the week or whatever. 

Is this behavior really necessary? Would it be that difficult to make the game recognize when you're typing in a book and to not count you as AFK when you're sitting in front of the screen actively typing? I know other games like World of Warcraft, League of Legends, etc, do not kick you out for inactivity if you are typing actively. Even if your character isn't moving, you're still considered IN GAME. Would it be that hard to implement that kind of set up in minecraft? I don't know, maybe you might try to add keystrokes to the list of actions that qualify you as not being AFK? Seems pretty simple to me. I mean AFK means "AWAY-FROM-KEYBOARD", and if you're typing on your keyboard, it follows logically that you must actually be near it. My keyboard actually is right in front of me right now as I'm typing this. I'm not sitting in my bedroom using my psychic powers to type this out on my keyboard downstairs. I am not AFK in the smallest tiniest bit right now. I am actually literally IN-FRONT-OF-KEYBOARD (IFOK) right now. But according to your game, because it's taken me so much time to type this out, I would be considered AFK and booted from the server. So if you could just explain that or fix it or something, that would be super cool. I'm not real keen on being told I'm away from my keyboard when it's literally beneath my fingers because i'm ACTIVELY typing on it and then losing all of the text i've been typing out for the past fifteen minutes.  This is bullshit. It needs to be fixed.