Revert "Changed the kana review pages to be slides"

This reverts commit f9f80403e2f66ded0131551bbc0a9981d362e820.
Revert "Revert "Changed the kana review pages to be slides""

This reverts commit 0f95e58c17f5b348a540629c120339997b4fdc5b.
Back to the state before the slides.

This reverts commit ee45ddc591b85e1fef21af3942a5c0fdde33416e.
Implemented answers and questioning