public function deleteSubCategories(Request $request)
 {
     if (Auth::user()->email == '*****@*****.**') {
         SubProductCategories::where('id', $request->input('subcategory_id'))->delete();
         return redirect()->back()->with($request->session()->flash('admin-success', 'Подкатегорията беше успешно изтрита.'));
     }
 }