#80 try to make frontend more pretty

- started working on group finding prototyp (basic group management prototyp for development - not advanced groupfinding i.e. mirjams project)

- started working on group finding prototyp (basic group management prototyp for development - not advanced groupfinding i.e. mirjams project)

- started working on group finding prototyp (basic group management prototyp for development - not advanced groupfinding i.e. mirjams project)

#79 improved peerfeedback interface implementation

#77 create Table for Peer2PeerFeedback
#78 db communication (create new entry)
#79 implement createPeer2PeerFeedback
#80 adjust view for student (givefeedback)

fix: path for quizzes done. almost assessment path done

feat: db reworked for quizzes.

feat: jsp pages are utf-8 encoded now

fix: userToken was not written to url during login

html mutates to jsp step by step. first step