Frontend: adjust React week4 Component Libraries & UI Libraries material #250
Description
As a result from this conclusion: HackYourFuture-CPH/hyf-assignment-template#162 (comment),
we have removed the encouragement to use a component library in React assignments.
Instead, the Component Libraries & UI Libraries of React week4 shall be enriched with adding:
"a few more bullets to describe the critical thinking trainees should practice regarding component libraries, add a disclaimer similar to "we do not recommend using them in hyf projects/assignments for now for x, y, z reasons", along with some suggestions of how trainees can continue to explore on their own outside of hyf (maybe a link or two)...".
Relates to #230