Changed typography on changelog to dark mode

[isabensusan]

Description

Added prose-invert to the changelog body component to make typography dark mode, and removed previous hacky attempts at making text white.

Related Tickets & Documents

closes #256

Mobile & Desktop Screenshots/Recordings

Before:
Very subtle, but there's links in the text that the user can't see because they are black by default.

After:
links and text are visible because of default dark mode theme

Steps to QA

1. Go to https://opensauced.pizza/changelog
2. Open any changelog item and notice the text is fully readable now

Tier (staff will fill in)

• Tier 1
• Tier 2
• Tier 3
• [ X] Tier 4

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

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

[netlify]

✅ Deploy Preview for opensauced-landing ready!

Name	Link
🔨 Latest commit	3bc62d6
🔍 Latest deploy log	https://app.netlify.com/sites/opensauced-landing/deploys/663239b56f55da00084d6042
😎 Deploy Preview	https://deploy-preview-254--opensauced-landing.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 100 (no change from production) Accessibility: 91 (no change from production) Best Practices: 92 (no change from production) SEO: 83 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[nickytonline]

[nickytonline]

There's some errors related to eslint. See https://app.netlify.com/sites/opensauced-landing/deploys/6630576edf5afe0008bc9070#L101-L634

[bdougie]

There's some errors related to eslint. See https://app.netlify.com/sites/opensauced-landing/deploys/6630576edf5afe0008bc9070#L101-L634

I looked into this and it was unrelated to this PR. Need to add aria tags to an img

#257