NPRML class uses wp_get_attachment_url() instead of attachment GUID
Deduplication between direct attachments and enclosures

resolves error raised when any non-admin user tries to trash a post

* NPRML Construction Changes

NPRML class uses wp_get_attachment_url() instead of attachment GUID
Deduplication between direct attachments and enclosures

* Change image_guid variable name to match content

Co-authored-by: Jared Counts <jcounts@houstonpublicmedia.org>

- arrays use square brackets instead of keyword
- Indents are tabs equal to 4 spaces
- Conditionals use {} instead of keywords (endif, etc)
- spaces within and around () unless they're empty
- removed spaces after ! in conditionals

*NOTE*: none of the code actually changed
This was strictly for my own sanity/edification

* If 'layout' is available in the NPR Story API output, generate complex HTML to render any images, YouTube videos, Tweets, iframes, or JavaScript-based widgets within the post in the order they appeared on the NPR website.

* if using the NPR "layout" only sideload primary story image into WordPress Media Library instead of all referenced images in the story

* Adding help text for layout option

Updating the text for the layout checkbox explaining that it may require a ticket with NPR to update their Story API key to get the layout section.

* Further tweaks to the help text for the

* Update settings.php

* Update NPRAPIWordpress.php

* Update NPRAPIWordpress.php

Co-authored-by: William Tam (WNET) <tamw-wnet@users.noreply.github.com>

Bug fixes
Resolving merge conflicts with main branch