Drupal 10 compatibility

Problem/Motivation

Hello project maintainers,

This is a patch issue to help make this module compatible with Drupal 10. I think there are a lot of websites still using this module and they have plan to upgrade its to Drupal 10. Thanks.

Remaining tasks

Using the patches

1. Apply the latest patch in the comments by contributors that made it better.
2. Thoroughly test the patch. These patches are analyzed by drush upgrade_status:analyze media_entity_generic so they haven't been tested manually or automatically.