[Plugin: Co-Authors Plus] Adjust column size for author listing

Great plugin, I just hope someone can assist me with one specific, and likely simple, thing.

After installing the plugin, the post listing in the admin back-end has a wider authors section, I want to resize the width to make it slimmer as I personally find that it looks quite awkward as it currently is – particularly because it mushes the post titles.

Any help will be appreciated. Thanks in advance.

https://www.ads-software.com/extend/plugins/co-authors-plus/