BUG-159 Search and go-to-page hotkeys (F and G respectively) don't work

[crawltracker]

Steps to reproduce
Open a book, e.g. https://pf2etools.com/book.html#crb
Hit F
Type something that definitely exists in the book (e.g. "feat")
Notice how nothing happens

Same goes for G and entering a page (CRB doesn't have pages at time of writing but GMG does for testing)

Severity
Medium

Additional information
Logged error: Uncaught TypeError: obj.entries.forEach is not a function in bookutils.js:3:4221

• spap#9812
  Verification: 0