PHP 8.2 Deprecated strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated

[mikelittle]

1. vendor/xwp/stream/classes/class-admin.php:535

- `strpos()`
    vendor/xwp/stream/classes/class-admin.php:535
- `WP_Stream\Admin->is_stream_screen()`
    vendor/xwp/stream/classes/class-admin.php:559
- `WP_Stream\Admin->admin_body_class()`
    wp-includes/class-wp-hook.php:308
- `apply_filters('admin_body_class')`
    wp-admin/admin-header.php:242
 1
 Dependency: xwp/stream