Wrong doc for block_editor_rest_api_preload()

[Chouby]

According to the doc, the function block_editor_rest_api_preload() is expecting an array of strings as first parameter.

It's however not true whent the method request is OPTIONS. In this specific case, the preloaded path is an array itself and the path is the first element (index 0) of this array. See for example ​this usage of the function block_editor_rest_api_preload().

The same mistake is done for the filter block_editor_rest_api_preload_paths and the deprecated filter block_editor_preload_paths.

[audrasjb]

Thanks for spotting this, and for the patch. Looks good to me, marking as ready for commit.

[audrasjb]

In 54776:

Docs: Fix block_editor_rest_api_preload() parameter type.

This changeset fixes the $preload_paths parameter type for block_editor_rest_api_preload() and related hooks. This parameter expects an array of strings OR an array where the path is the first element (index 0) of this array.

Props chouby.
Fixes #56810.
See #56792.