Better error handling of wp_filesystem issue

[j-falk]

We had an issue with importing settings not working on our hosting. After some testing and troubleshooting we found that we needed to set define('FS_METHOD','direct'); in our wp-config.php for the import to work.

This is obviously connected to an issue with our hosting setup but it would have been great if the plugin could have thrown an error about that the import didn't work to guide us at least a litte about why it didn't work. Instead it actually looked like the import had gone through but instead it reset all settings.

So maybe if there could be a check after this code:

astra-import-export/inc/classes/class-astra-import-export-loader.php

Lines 156 to 160 in badb188

	global $wp_filesystem;
	if ( empty( $wp_filesystem ) ) {
	require_once ABSPATH . '/wp-admin/includes/file.php';
	WP_Filesystem();
	}

if $wp_filesystem worked, and if it didn't throw an error similar to eg wp_die( esc_html__( 'Upload failed', 'astra-import-export' ) );?