Describe the bug
Exported feeds with cli/export-zip-for-user.php
Try to import with cli/import-for-user.php to another user

Result in console

`\cli\import-for-user.php" --user User --filename "file.zip"
FreshRSS importing ZIP/OPML/JSON for user “User”…

Fatal error: Uncaught TypeError: sanitizeHTML(): Argument https://github.com/FreshRSS/FreshRSS/issues/1 ($data) must be of type string, array given, called in W:\domains\loca
lhost\fresh\f1\app\Controllers\importExportController.php on line 442 and defined in W:\domains\localhost\fresh\f1\lib\lib_rss.php:
334
Stack trace:
#0 W:\domains\localhost\fresh\f1\app\Controllers\importExportController.php(442): sanitizeHTML()
https://github.com/FreshRSS/FreshRSS/issues/1 W:\domains\localhost\fresh\f1\app\Controllers\importExportController.php(139): FreshRSS_importExport_Controller->importJson()
https://github.com/FreshRSS/FreshRSS/issues/2 W:\domains\localhost\fresh\f1\cli\import-for-user.php(31): FreshRSS_importExport_Controller->importFile()
https://github.com/FreshRSS/FreshRSS/issues/3 {main}
thrown in W:\domains\localhost\fresh\f1\lib\lib_rss.php on line 334`

FreshRSS edge dev vesrion
PHP 8.0