add responses

[dillingham]

public function show(Customer $customer)
{
    return Inertia::render('Customers/Show', [
        'customer' => new CustomerResource($customer),
    ]);
}

public function show(CustomerFormation $formation)
{
    return $formation->inertia('Customer/Show');
}

public function show(CustomerFormation $formation)
{
    return $formation->view('customers.show');
}