Bugfix: Prevent accordion toggling when clicking on input/select fields

This is for story https://www.pivotaltracker.com/story/show/61400382. I managed to reproduce the original problem following these steps:

1. Open up Requests accordion.
2. Open up Responses accordion.
3. Scroll down.

I'm not sure what's causing the problem (might be something with the sticky footer), but this commit seems to fix it. Let me know if there is a better way to do this.