feat: add slider feature

app/Http/Controllers/SliderController.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Slider;
+
+class SliderController extends Controller
+{
+    public function index()
+    {
+        return response()->json([
+            'data' => Slider::all()
+        ]);
+    }
+}