Fixes to plugin

Hey there;

I was getting a deprecation notice in the file class-begs-init.php. This is easily fixed by adding one line here:

<?php

namespace BEGS\Block_Editor_Gallery_Slider;

! defined( ABSPATH ) || exit;

if ( ! class_exists( 'BEGS_Init' ) ) {

	class BEGS_Init extends Block_Editor_Gallery_Slider {
        public $opt; // <-- this line added

Also, your plugin assumes that the global $post exists. If it doesn’t exist, it breaks with a javascript error that says “begs_options” doesn’t exist. This is fixed in the file class-begs-gallery-slider.php

There’s a lot of ways to fix this, mine might not be the best way, but here’s my solution:

		public function localize_front_control_options() {
			global $post;

			$post_classic_meta = array(
				'is_gallery_slider_enabled' => 0,
				'container_class_name'      => '',
			);


            $post_classic_meta = false;

            if (is_object($post)) {
    			if ( get_post_meta( $post->ID, 'begs_classic_gallery_slider_options' ) ) {
	    			$post_classic_meta = get_post_meta( $post->ID, 'begs_classic_gallery_slider_options' )[0];
		    	}
            }

			if ( get_option( 'begs_disable_all_galleries' ) ) {
				$option_disable_all_galleries = get_option( 'begs_disable_all_galleries' )['selected'];
			} else {
				$option_disable_all_galleries = false;
			}

			wp_localize_script(
				'block-editor-gallery-slider-front',
				'begs_options',
				array(
					'option_disable_all_galleries'        => $option_disable_all_galleries,
					'post_classic_gallery_slider_enabled' => !empty($post_classic_meta) ? $post_classic_meta['is_gallery_slider_enabled'] : false,
					'post_classic_gallery_slider_container_wrap_class' => !empty($post_classic_meta) ? $post_classic_meta['container_class_name'] : 'slider-not-enabled',
				)
			);
		}

It would be great if these fixes could make it into the code. I’m not really sure the procedure to do so and my desire to remember how to use SVN is low, so I’ll leave those details to someone who’s already done it if that’s okay ?? Thanks for making the plugin, it has (largely) worked very well for me!