Homepage fix

[s-thom]

Fixes some styles on the home page, and some other minor changes:

• Spelling error
• Add all contributors bot block to manage contributors

Motivation and Context

There wasn't any padding between thing in the cards on the homepage, which made it look cramped.

There's still the issue of the buttons not always being at the bottom, but that can be fixed later.

Screenshots (if appropriate)

Before	After

Checklist

• [ ] Text content in this PR was created by a human and not AI.
• [x] I have read the contribution guidelines and code of conduct.

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Name	Status	Preview	Updated
ourflags-lgbt	✅ Ready (Inspect)	Visit Preview	Jan 11, 2023 at 10:25PM (UTC)