feat : modification de la page employé WIP + ajout d'une navbar

frontend/services/employees.ts

@@ -21,6 +21,11 @@ export const listScopedEmployees = async () => {
   return extractItems<Employee>(data)
 }
 
+export const getEmployee = async (id: number) => {
+  const api = useApi()
+  return api.get<Employee>(`/employees/${id}`, {}, { toast: false })
+}
+
 export const createEmployee = async (payload: {
   firstName: string
   lastName: string