Improve Acey Ducey JavaScript port

[domenic]

Notable changes:

• Use informative variable names instead of q, a, b, m, and c
• Use a lookup table instead of chained ifs for face cards
• Refactor I/O helpers into a separate file
• Refactor random card logic into its own function
• Support any case for "yes" input
• Add a few comments to non-obvious parts of the game logic
• Insert "HERE IS THE CARD WE DREW:" into the output since just printing the card was pretty confusing
• Make indentation uniform
• Make bracing style uniform
• Use conventional JavaScript camelCasing
• Use top-level await in a module instead of a main() function
• Clean up the HTML shell page for modern best practices (including a mobile-friendly viewport)

[coding-horror]

Thank you!