scroll to row in annotations list when selection an annotation from t…

…he editor (fixes #69)

src/main/java/edu/kit/kastel/sdq/intelligrade/extensions/guis/AnnotationsListPanel.java

@@ -133,6 +133,7 @@ public void selectAnnotation(Annotation annotation) {
         if (row >= 0) {
             int viewRow = table.convertRowIndexToView(row);
             table.setRowSelectionInterval(viewRow, viewRow);
+            table.scrollRectToVisible(table.getCellRect(viewRow, 0, true));
         }
     }