Fix documentation: The default for the view_mode_post_types filter is non-hierarchical post types, not hierarchical

[birgire]

The documentation for the view_mode_post_types filter says:

Default hierarchical post types with show_ui on

but it should be:

Default non-hierarchical post types with show_ui on.

because the default is:

$view_mode_post_types = get_post_types( array( 'hierarchical' => false, 'show_ui' => true ) );

We can see it here:

​https://github.com/WordPress/WordPress/blob/bbb8d48086b7d10908f4fda673585ee122f2851d/wp-admin/includes/class-wp-screen.php#L1200

[SergeyBiryukov]

In 41317:

Docs: Correct description for view_mode_post_types filter added in [35357].

Props birgire.
Fixes #41730.

[birgire]

thanks @SergeyBiryukov, wow that was quick ;-)