feat: add use cases menu

[zeucapua]

Description

Adds a drop down menu that leads to various use cases pages

What type of PR is this? (check all applicable)

• [x] 🍕 Feature
• [ ] 🐛 Bug Fix
• [ ] 📝 Documentation Update
• [ ] 🎨 Style
• [ ] 🧑‍💻 Code Refactor
• [ ] 🔥 Performance Improvements
• [ ] ✅ Test
• [ ] 🤖 Build
• [ ] 🔁 CI
• [ ] 📦 Chore (Release)
• [ ] ⏩ Revert

Related Tickets & Documents

Closes #207

Mobile & Desktop Screenshots/Recordings

Steps to QA

Added to documentation?

• [ ] 📜 README.md
• [ ] 📓 docs.opensauced.pizza
• [ ] 🍕 dev.to/opensauced
• [ ] 📕 storybook
• [ ] 🙅 no documentation needed

[optional] Are there any post-deployment tasks we need to perform?

[optional] What gif best describes this PR or how it makes you feel?

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[nickytonline]

Is there a /contributors page yet? Going there 404s for me in the deploy preview

The page appears to be there in code.

[nickytonline]

The menu is also not above the page contents.

[zeucapua]

I think this branch some how has an upstream from earlier before I made the /contributors page, but it should work if merged into main since that has the page @nickytonline

[isabensusan]

+1 to /contributors page throwing a 404 (maybe the deploy preview hasn't updated yet) +1 to fixing the z-index for the dropdown to be above anything else

Mobile one more thing is we need to add the links to the mobile navigation -- we don't need to add the full dropdown here, I think just adding the links "Contributors" "Maintainers" "Teams" would be ok for mobile

[nickytonline]

I think this branch some how has an upstream from earlier before I made the /contributors page, but it should work if merged into main since that has the page @nickytonline

Merge latest from main just to be certain, but yeah.

[jpmcb]

Can you:

git checkout main
git pull main
git checkout feat/user-cases-dropdown
git rebase origin/main

to get this branch ontop of what's the latest on main?