Media: Fix `wp_image_file_matches_image_meta()` to also match when the original image URL is used.

Also refreshes and fixes some of the unit tests for media, and replaces test-image-large.png with test-image-large.jpg which is larger to allow testing of `original_image` in the image meta.

Fixes #50628.


Built from https://develop.svn.wordpress.org/trunk@48454


git-svn-id: https://core.svn.wordpress.org/trunk@48223 1a063a9b-81f0-0310-95a4-ce76da25c4cd