Taken from upstream with some tweaks:
*Removed always show at start option
*"Left" and "Right" in reader overlay now say "Next" or "Previous" in LRNav
*Changing Inversion also shows navigation overlay
*Show new user the nav overlay the first time for both paged and webview (since j2k has auto webtoon)
Also unrelated, changed "page transitions" to "animate page transitions"
Co-Authored-By: arkon <4098258+arkon@users.noreply.github.com>