Frontend-Backend-04 - Finish up the first version of the teacher's side groups overview

[Anniegavr]

• Add the necessary components as per the defined Ux/Ui
• Link the components with the backend actions that pertain to them
• Prepare the queries to see all students and filter students by groups and order students
• Prepare a minimized student profile preview and link the student shown in the list of all students to the minimized view. When the teacher clicks on a student, they shall see a student's public profile preview on the right side of the page, as well as see the necessary info about the student.