feat: continued to implement SharedApiService (if linter fails i don't understand)

MyINPulse-back/src/main/java/enseirb/myinpulse/model/SectionCell.java

@@ -83,4 +83,8 @@ public class SectionCell {
     public Project getProjectSectionCell() {
         return projectSectionCell;
     }
+
+    public List<Appointment> getAppointmentSectionCell() {
+        return appointment;
+    }
 }