Display license terms on the article landing page

[kaitlinnewson]

Describe the bug
In the theme the license terms in Distribution > License Terms do not display alongside the license URL on the article page when set. This should be adjusted in article_details.tpl.

Seen in OJS 3.3.

To Reproduce
Steps to reproduce the behavior:

1. Set the license terms in Distribution > License
2. Ensure that the theme is installed and enabled
3. Navigate to an article landing page, and notice that the license URL appears but not the license terms, which should be below the URL (e.g. the CC license info).

Expected behavior
Display both the URL and the license terms when they are set.

Additional context

• Location in the theme:

  classic/templates/frontend/objects/article_details.tpl

  Line 293 in c34e83c

  {if $licenseTerms || $licenseUrl}

• Example from the default template of the preferred behaviour.
• Original issue in pkp-lib: License terms not displayed on article page in certain themes pkp-lib#9467