Feature/update next and its deps

[payapula]

Description

NextJs 12 Upgrade, Closes #45

Changes

• Next 12 🚀
• Chakra 🚀
• Next-Mdx-Remote 🚀
• Next-Seo 🚀
• React 🚀

Packages

• See package.json for the upgrade info.

Additional Information

Styled System v1.7.0

• 🚀 Refactored apply prop handling to use the style config pattern instead of add it imperatively ~ Chakra docs

• Fixes added for apply prop. (styles/theme/styles.ts)

-- '_hover': {
++ '&:hover': {
            borderBottom: '1px solid'
 }

[vercel[bot]]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/payapula/blog/EVfHEowqbn3ZeKGo4EL6dvoxeA98
✅ Preview: https://blog-git-feature-updatenextanditsdeps-payapula.vercel.app