Could it be possible to show the full filename or title while in grid view mode? Maybe as a tooltip while hovering over the title? Most of my comics have long filenames and the fastest way I currently have of checking its by opening file location which is far from ideal.
Also it could be implemented on the left sidebar to show full folder name.

I'm already very grateful of all the effort you have put on this software and I think this would increase the usability for many of us.

Nice idea, thanks!