rename of 'DegreeDetails...' to 'CoursesOfStudyDetails'

src/main/java/de/thdeg/grademanager/gui/DegreeDetailsController.java → src/main/java/de/thdeg/grademanager/gui/CoursesOfStudyDetailsController.java

 package de.thdeg.grademanager.gui;
 
-public class DegreeDetailsController {
+public class CoursesOfStudyDetailsController {
 }

src/main/java/de/thdeg/grademanager/gui/MainController.java

@@ -70,8 +70,8 @@ public class MainController {
     }
 
     @FXML
-    protected void switchToDegreeDetails(ActionEvent event) throws IOException {
-        root = new FXMLLoader(Main.class.getResource("degree-details.fxml"));
+    protected void switchToCoursesOfStudyDetails(ActionEvent event) throws IOException {
+        root = new FXMLLoader(Main.class.getResource("courses-of-study-details.fxml"));
         stage = (Stage) ((Node) event.getSource()).getScene().getWindow();
         scene = new Scene(root.load(), 960, 540);
         stage.setTitle("Degree Details");