My first SPA using React

Hey, Here you can see my first react application. I just noticed after like 80% of progress on this project that I could've just use the lifecycle methods more often. If you have any other suggestions or hints for me, that would be awesome. One thing that I've tried to fix but couldn't manage to do it was in the desktop version (view width over 1023.5px) when the window is too small I can scroll downwards but not upwards if I try to the page is just like cut off.

Thank you for looking at my Project, I hope you like it.

Happy Coding!