Add Functionality to Hide Problem Description

the Window where you type code is very small.

The Problem Description is taking the most space and unfortunately its minimal size takes half of the screen.
I only read the description in the beginning and don’t really need it when writing the actual code
I would prefer if I was able to hide the description completely and have the whole screen for programming.

ah thanks.
I didn’t see the button because it was hidden behind the (closed) chat bar.
I had to scroll right to see the button.