Remove truncation from issue titles on milestone page

Created by: jasonblanchard

Currently, issues titles on the milestone page are truncated down to one line:

This makes it really hard to use this page to get a "birds-eye-view" of the status of a milestone. We've found that it's especially difficult during team stand-ups when we have the milestone page up on a projector and we are trying to use this page to plan feature development. As the titles and number of issues grow, I don't think the length of the columns is as much of an issue now that we can determine a priority order by dragging-and-dropping issues to sort at the top of the list.

This merge request proposes removing the truncation class entirely and letting the issue titles naturally wrap to multiple lines, which I think is substantially more readable on both small and large viewports: