deprecation

Hello,

I’m exploring the plugin in php 8.3 and found the following issue:

Deprecated: Automatic conversion of false to array is deprecated in plugins/rvg-optimize-database/rvg-optimize-database.php on line?208

    function odb_load_options() {
        // GET OPTIONS
        $this->odb_rvg_options = $this->odb_multisite_obj->odb_ms_get_option('odb_rvg_options');

        if(!isset($this->odb_rvg_options['version']))
            // THIS VERSION IS FROM BEFORE 4.0: CONVERT OPTIONS
            $this->odb_convert_options();

        if(!isset($this->odb_rvg_options['adminbar']))
            $this->odb_rvg_options['adminbar']         = 'N';

The code needs to be updated to (first time odb_ms_get_option returns false):

    function odb_load_options() {
        // GET OPTIONS
        $this->odb_rvg_options = $this->odb_multisite_obj->odb_ms_get_option('odb_rvg_options', []);

Also please consider moving the development to github, this way people can submit issues and pull requests.