fix: more dummy assessments. reworked project-student and project-docent

.idea/workspace.xml

...c/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java

...am/gf/modules/assessment/controller/model/Assessment.java

...otsdam/gf/modules/assessment/controller/model/Grades.java

...m/gf/modules/assessment/controller/model/Performance.java

...modules/assessment/controller/model/TotalPerformance.java

.../modules/assessment/controller/service/FBAssessement.java

...modules/assessment/controller/service/PeerAssessment.java

...es/assessment/controller/service/PeerAssessmentDummy.java

...tsdam/gf/modules/assessment/controller/view/QuizView.java

...hen/src/main/webapp/assets/css/Community-ChatComments.css

...samforschen/src/main/webapp/assets/css/Sidebar-Menu-1.css

gemeinsamforschen/src/main/webapp/assets/css/styles.css

gemeinsamforschen/src/main/webapp/assets/js/Sidebar-Menu.js

...orschen/src/main/webapp/assets/js/assessmentCalculator.js

...mforschen/src/main/webapp/pages/assessmentCalculator.html

gemeinsamforschen/src/main/webapp/pages/project-docent.html

gemeinsamforschen/src/main/webapp/pages/project-student.html