Fixed news widget not refreshing when the refresh option is clicked.

Review Request #10694 — Created Sept. 6, 2019 and updated — Latest diff uploaded

Review Board
reviewboard, students

In the HTML file where the onclick listener is attached, it tries to
attach it to an anchor tag with the class "reload-news". The actual
tag that is meant to handle refreshing the news widget has an id set
to "reload-news", rather than a class.

This changes that CSS selector to use the id, rather than the class.

Tested locally with console.log() and by adding a debugger statement to
the on click listener, and then clicking on the refresh news widget
item. This triggers an AJAX call, which is visible in the network tab.