Merge branch 'collab_front' into 'main'

README.md

backend/db/crud.py

backend/db/models.py

backend/db/schemas.py

backend/main.py

backend/routers/news.py

backend/routers/opening_hours.py

backend/routers/stats.py

frontend/package-lock.json

frontend/package.json

frontend/src/components/Comments.js

frontend/src/components/Footer.js

frontend/src/components/Graph.js

frontend/src/components/Header.js

frontend/src/components/WaitingTime.js

frontend/src/components/index.js

frontend/src/index.js

frontend/src/styles/Comments.css

frontend/src/styles/Header.css

frontend/src/styles/Home.css