feat : ajout d'un onglet formation

frontend/services/dto/formation.ts

@@ -0,0 +1,12 @@
+import type { Employee } from './employee'
+
+export type Formation = {
+  id: number
+  startDate: string
+  endDate: string
+  comment: string | null
+  justificatifPath: string | null
+  justificatifName: string | null
+  createdAt: string
+  employee?: Employee
+}

frontend/services/dto/work-hour.ts

@@ -106,6 +106,8 @@ export type WorkHourDayContextRow = {
   creditedMinutes: number
   creditedPresenceUnits: number
   isDriverContract?: boolean
+  hasFormation?: boolean
+  formationLabel?: string | null
 }
 
 export type WorkHourDayContext = {