feat: add curriculum-press parser and template for astro-react

[ShaunSHamilton]

1. Go to https://curriculum-press.preview.freecode.camp/
2. Create project
3. Copy-pasta template from curriculum-template.json into https://curriculum-press.preview.freecode.camp/
4. Create lessons
5. Export project json somewhere in app
6. Replace load-curriculum.ts with:

import { parseCurriculumPress } from '../lib/curriculum-press';
import project from '../data/my-project.json';

const curriculum = parseCurriculumPress(project, {
  title: 'My Curriculum',
  description: 'Optional description',
});

Alternative: Force file name convention for curriculum content, and add scripts.dev:json , and major refactor to split between working with Markdown or JSON 🤷‍♂️