Updates QUnit test files from starting with "test_" to ending with
"test.js" in accordance with the Readers Wed coding conventions.
https://www.mediawiki.org/wiki/Reading/Web/Coding_conventions
Bug: T197884
Change-Id: I3c15385d22d308b8b465985ca55e8b802d72dae4
* Move across all files
* Rename ext-card- prefix to ext-related-articles- prefix
** Since all code using these prefixes is JS
we do not have to worry about cached HTML
Bug: T137021
Change-Id: I784fd132c36329fa0dcc49fe2804460061940347