NavLink component uses the same name as NavLink from react-router-dom

[enigma1]

After I saw it, I used a different name for the router's import, but then I had to mess with the nav's css properties as these NavLink components are mutually exclusive but with different styles. I can't yet figure a simpler way around.

[kopax]

Hi @enigma1, I do not get how it can be problematic to use the same export name as another lib.

Our component apply bootstrap 4 style to it.