Fix return types for Taxrate controllers and remove unused classes for Payment controller.

app/Http/Controllers/Api/TaxrateController.php

@@ -4,6 +4,7 @@ namespace App\Http\Controllers\Api;
 
 use App\Http\Controllers\Controller;
 use App\Models\Taxrate;
+use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 
 class TaxrateController extends Controller
@@ -11,7 +12,7 @@ class TaxrateController extends Controller
     /**
      * Display a listing of the resource.
      */
-    public function index()
+    public function index(): JsonResponse
     {
         return response()->json(Taxrate::all());
     }
@@ -19,7 +20,7 @@ class TaxrateController extends Controller
     /**
      * Store a newly created resource in storage.
      */
-    public function store(Request $request)
+    public function store(Request $request): JsonResponse
     {
         $taxData = $request->validate([
             'name' => 'required|string',
@@ -36,7 +37,7 @@ class TaxrateController extends Controller
     /**
      * Update the specified resource in storage.
      */
-    public function update(Request $request, Taxrate $taxrate)
+    public function update(Request $request, Taxrate $taxrate): JsonResponse
     {
         $taxData = $request->validate([
             'name' => 'required|string',
@@ -52,10 +53,10 @@ class TaxrateController extends Controller
     /**
      * Remove the specified resource from storage.
      */
-    public function destroy(Taxrate $taxrate)
+    public function destroy(Taxrate $taxrate): JsonResponse
     {
         $taxrate->delete();
 
-        return response()->json();
+        return response()->json(null, 204);
     }
 }