feat: add rendering components for announcements and posts

jsconfig.json

package-lock.json

package.json

src/App.jsx

src/components/Chip.jsx

src/components/annoucements/Announcement.jsx

src/components/annoucements/AnnouncementList.jsx

src/components/posts/Post.jsx

src/components/posts/PostList.jsx

src/containers/AnnoucementsContainer.jsx

src/containers/PostsContainer.jsx

src/pages/Home.jsx

src/stores.js

typings/cf2021.d.ts