Books and manga tweaks

I made some changes to the books page: I added a new section for my reading history, basically everything I can remember ever reading in my life, and I redid the shelf page so now it's just reviews I've written. I also added more buttons to the links page. On the manga page, I optimized the MyAnimeList widget so it updates in real time, and I started reading WITCHRIV again, so I updated its page…