feat: delete post, ban and reactions

.env

public/index.html

src/App.jsx

src/actions/announcements.js

src/actions/posts.js

src/actions/users.js

src/containers/AnnoucementsContainer.jsx

src/containers/PostsContainer.jsx

src/containers/StatsCard.jsx

src/pages/Home.jsx

src/stores.js

src/utils.js

src/ws/connection.js

src/ws/handlers/index.js

src/ws/handlers/posts.js

src/ws/handlers/users.js

typings/cf2021.d.ts