Update style from CohortsPage, and a couple of JSX

[lucianosimoni]

CSS must be updated and the JSX must implement the StudentsList component

Remarks

• grid not working
• Check for all the classes in the style.css and remove unused.
• Use spaces and extensively use class names for all of the components.
• • It requires some changes in the jsx of the component using it (Teachers or Student)
• Make sure to use all the available width of the page.
• BUG: the width of the
  should not be 100vh (viewport Height), instead should be 100vw (viewport width)

Do not use elements callouts like li or nav. Use nested className like .list-wrapper .list-item

It avoids problems with other pages receiving those styles by mistake.

[dogezen]

OK looks good, please proceed with this