You uploaded every file individually, you need to show you have competency with Git, you have not shown that. Additionally, you seem to not be following direction closely – we don’t have the manpower to hold your hand every step of the way so, do research, and if that research yields no results(This is highly unlikely to happen) then ask.
There is still plenty of time to get up to speed!
for the WSL issue: https://www.google.com/search?q=WSL+Flutter
These are resources to learn Git.