Updated HTMLifier

I regenerated the game with updated HTMLifier. It now includes better handling for iframe focusing and fixes some issues where iframe focus was lost during the game. Now, the iframe will automatically focus on load and preserve focus during fullscreen click. In case if focus is lost because click outside iframe, it can be reactivated with click to iframe. Check more details on GitHub.

Thanks to SheepTester, the creator of HTMLifier, for quick response and fix.