I'm trying to add more rows in the media picker modal window. Is there any clean way to achieve doing this ?
I found a way to fix the pagination
There is a way you can 'hook' into paginate_links. There is no official hook for it, but you can change the $wp_query->found_posts variable.
What I did here is 'hooking' into the paginate_links by abusing the media_upload_mime_type_links filter and setting a new value for $wp_query->found_posts.
This filter is triggered just before paginate_links is called.
I have made a WordPress plugin for the complete solution, which you will find in the repository.
This works but the big issue is to solve the pagination, because it is completely broken.
Is there a way to hook here?