Update tufty repo references to badger

[tbries]

The companion repo which holds the code for the badges is badger/home but was originally named badger/tufty. The functional references to account for the name change were made in 5c41f56

This PR updates a few remaining tufty references to account for the name change. Given the repo name doesn't always make sense out of context, I elected to reword a couple sentences to avoid confusion and where which repo was being referenced should be clear without having to name it.

[Copilot]

Pull request overview

This PR updates documentation to reflect the repository name change from badger/tufty to badger/home, completing the transition started in a previous commit.

• Updated folder path references from tufty-main to home-main
• Reworded references to use "Home" or "the repo" for clarity
• Maintained consistency across installation guides

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/content/hacks/snake-install.mdx	Updated step titles, folder paths, and description to reference home-main instead of tufty-main
src/content/hacks/menu-pagination.mdx	Changed reference from "Tufty repo" to "the repo" in the introduction
src/content/hacks/commits-game.mdx	Updated prerequisites, folder paths, and cleanup text to use "Home" and home-main instead of "Tufty" and tufty-main

[tbries]

@badger/reviewers I see you are in CODEOWNERS but given you are not being automatically assigned to this PR, I think the team may not have explicit permission to maintain this repo, even if your members indirectly do.