Refactor Input component

[rubenthoms]

Material UI Base has extended functionality quite a bit:
https://mui.com/base-ui/react-input/
https://mui.com/base-ui/react-number-input/

Hence, we can remove some of our custom code and start using their implementations. The number input could either become a new component or we add a prop switch to our current Input component that controls which component is returned. Also, we could start using their adornments implementation.