[Feature] Create Header component

[benjaminkost]

💡 Motivation und Nutzen

Create a header componenten that contains:

1. Navigation button on the left -> side bar appears when clicking
2. logo + text on the left
3. if user not logged in login/register text on the right -> if logged in: generic Profile picture with drop down

🚀 Vorgeschlagene Lösung

• https://mui.com/material-ui/react-app-bar/

🔄 Alternativen

No response

📎 Zusätzliche Informationen

No response