You've reported for almost a year now that plugin support is coming. I've purchase a listary license in anticipation of the new features, but I've seen almost nothing in the way of new features in the last year. There are many features I've seen suggested that you say "I've added to my list", yet this list is not public and I don't see anything happening...
What is the situation?
If Listary is going nowhere, then perhaps it's time to move back to Wox or just find another solution altogether.