Add ESLint, Prettier, Prisma, and Tailwind

[andrecasal]

Add recommended extensions for VS Code

[onemen]

I think that we also need a way to share ESlint and Prettier configuration to prevent VScode from automatically change the code when our local VScode configuration does not match @kentcdodds configuration

[andrecasal]

At the moment, Prettier's config lives in package.json. Wouldn't it be more obvious where prettier's config lives if we had a .prettierrc file instead (that's how I overrode some of the rules in package.json btw)?

[kentcdodds]

Thanks!

[kentcdodds]

I'm fine if someone wants to move the prettier config out of the package.json, but this isn't required for getting this merged.