Upload Image In Laravel With jQuery AJAX

I am trying to upload photo in Laravel using jQuery AJAX. But it's always failed many times with error message

The photo must be an image. The photo must be a file of type: jpeg, png, jpg, gif, svg.

I have no idea why. What's wrong with my code below?

Controller

$validator = \Validator::make($request->all(), [
        'photo' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
    ]);
    
    if ($files = $request->file('image')) {
            //insert new file
            $destinationPath = 'public/product_images/'; // upload path
            $image_path = date('YmdHis') . "." . $files->getClientOriginalExtension();
            $files->move($destinationPath, $image_path);
        }

        $productId = DB::table('products')->insertGetId(
            [
                'product_photo' => $image_path
            ]
        );

View

    $("#photo").fileinput({
        theme: 'fa',
        uploadUrl: '',
        uploadExtraData: function() {
            return {
                _token: $("input[name='_token']").val(),
            };
        },
        allowedFileExtensions: ['jpg', 'png', 'gif'],
        overwriteInitial: false,
        maxFileSize: 2000,
        maxFilesNum: 5,
        slugCallback: function(filename) {
            return filename.replace('(', '_').replace(']', '_');
        }
    });
                        
    $('#saveBtnForCreate').click(function(e) {
        e.preventDefault();
        $.ajaxSetup({
            headers: {
                'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
            }
        });

        $.ajax({
            url: "",
            method: 'post',
            enctype: 'multipart/form-data',
            cache: false,
            dataType: 'JSON',
            data: {
                photo: $('#photo').val()
            },
            success: function(result) {
                if (result.errors) {
                    $('.alert-danger').html(
                        'An error in your input!'
                    );
                    $.each(result.errors, function(key, value) {
                        $('.alert-danger').show();
                        $('.alert-danger').append('<strong><li>' + value +
                            '</li></strong>');
                    });
                } 
            }
        });
    });

via Chebli Mohamed