feat : ajout d'un champ commentaire sur les contrats + correction de plusieurs bugs

frontend/pages/employees/[id].vue

@@ -93,6 +93,7 @@
                     class="h-full"
                     :absences="employeeAbsences"
                     :summary="leaveSummary"
+                    :public-holidays="publicHolidays"
                 />
                 <EmployeesRttTab v-else class="h-full" :summary="rttSummary" />
             </div>
@@ -109,6 +110,7 @@ const {
     employeeAbsences,
     leaveSummary,
     rttSummary,
+    publicHolidays,
     showLeaveTab,
     contractHistory,
     employeeContractWorkLabel,