Merge branch 'frontend' into 'develop'

frontend/.gitignore

frontend/package-lock.json

frontend/package.json

frontend/public/favicon.ico

frontend/public/index.html

frontend/public/logo192.png

frontend/public/logo512.png

frontend/public/manifest.json

frontend/public/robots.txt

frontend/src/App.js

frontend/src/components/Auth/Auth.js

frontend/src/components/Auth/Input.js

frontend/src/components/Auth/styles.js

frontend/src/components/AuthRoute/AuthRoute.js

frontend/src/components/Comment/Comment.js

frontend/src/components/Comment/styles.js

frontend/src/components/FeaturedPost/FeaturedPost.js

frontend/src/components/FeaturedPost/styles.js

frontend/src/components/Header/Header.js

frontend/src/components/Header/styles.js