PHP 8.2 Compatibility

Couple of fixes to remove warnings when using php 8.2 with error reporting on.

diff --git a/admin/general_settings.php b/admin/general_settings.php
index 00b4670..8fcb02f 100644
--- a/admin/general_settings.php
+++ b/admin/general_settings.php
@@ -3,6 +3,8 @@ class wp_lightbox_2_general_settings_page{
private $menu_name;
private $databese_settings;
public  $initial_values;
+       public  $plugin_url;
+       public  $plugin_path;


function __construct($params){
@@ -240,4 +242,4 @@ class wp_lightbox_2_general_settings_page{
}


- ?>
\ No newline at end of file
+ ?>

diff --git a/wp-lightbox-2.php b/wp-lightbox-2.php
index d0ab894..d461467 100644
--- a/wp-lightbox-2.php
+++ b/wp-lightbox-2.php
@@ -151,8 +151,8 @@ function jqlb_lightbox_comment($comment){

function jqlb_autoexpand_rel_wlightbox($content) {
if(get_option('jqlb_automate') == 1){
-               global $post;
-               $id = ($post->ID) ? $post->ID : -1;
+               global $post;
+               $id = isset($post->ID) ? $post->ID : -1;
$content = jqlb_do_regexp($content, $id); //legacy regex function when images don't have rel tags
$content = wplbtwo_do_regexp($content, $id);
}