Wormeymanfixes

[wormeyman]

This pull request:

1. gets more specific with system font stack.
2. Switches the top section inline styles to flexbox so it looks good on mobile even though it doesn't really make sense for someone on mobile to be searching for a desktop game.
3. adds type="submit" to buttons to fix a linting error.
4. adds for accessibility and to fix linting errors.

I originally was going to fix color issues, but they all appear to be AAA contrast compliant now.

[Distortions81]

Thanks for the changes!