Fix listaccordion link locator

Here's a TB of the current issue for anyone interested: https://url.corp.redhat.com/d6c0aaf

Tested on 5.2.z and 5.3.0 downstream (using -k host_analysis).
And wanting to click the anchor is what was causing the error in the first place (that is what I was trying to do with the `..` at the end.. there are two anchors next to each other with the same title and I was trying to always select the one with an image inside - when you remove the whole `/img/..` part, it will choose one of the two anchors - but this causes the same issue.
Clicking the image however works.