Expando gallery not working for some galleries

[faraplay]

Describe the bug The lightgallery expando isn't created if the first image has a link

To Reproduce Steps to reproduce the behavior:

1. Go to https://old.reddit.com/r/faraplayTest/
2. Click on the thumbnail for the post "two images"

Expected behavior A lightgallery loads with the two images.

Actual behavior It defaults to the usual reddit behaviour.

[faraplay]

I'll work on a fix in #100