add methods to get icon on article natures

app/Models/Shop/Categorizable.php

@@ -3,22 +3,24 @@
 namespace App\Models\Shop;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
 
 class Categorizable extends Model
 {
     protected $table = 'categorizables';
 
-    public function categorizable()
+    public function categorizable(): MorphTo
     {
         return $this->morphTo();
     }
 
-    public function category()
+    public function category(): BelongsTo
     {
         return $this->belongsTo(Category::class);
     }
 
-    public function article()
+    public function article(): BelongsTo
     {
         return $this->belongsTo(Article::class, 'categorizable_id');
     }