Make journal title single-line in paper articles on main page

[alt-thompson]

In base.scss, the commented out .line-clamp CSS definitions should be reinstated. See https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-overflow, https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/white-space for details. The white-space: nowrap entry causes the column to be too wide, which causes it to drop below the publications image in a second row within the bootstrap grid row. This is not the desired behavior.

Questions include: is there a way to get the bootstrap grid to play nicely with text-overflow ellipsis? Alternatively, how does makeability website get the grid behavior without wite-space nowrap causing problems for it? Come back to this to solve.

[alt-thompson]

Once this is sorted, we'll want to remove .line-clamp classes from paper-article.html since we don't desire to use it there. We do want to use it in whatever HTML definitions we'll use for publications on the main page.