feat: add date picker to stats and standings screens and other QOL updates

[AxBolduc]

• Have both teams' box scores shown in the box score pane
• Add HR to box score
• Show stats (team/player, hitting/pitching) as of date selected
• Show standings as of date selected

[andschneider]

Hey @AxBolduc, thanks for the PR, this looks awesome! Could you do a few Cargo things to start:

• run cargo fmt and use its formatting
• run cargo clippy --all-targets --workspace --all-features and fix all warnings and errors
• run cargo test --all-targets --workspace --all-features and make sure everything passes

These should get CI to pass

[AxBolduc]

Hey @andschneider any chance we can get this merged in?