Hi! The actions column is currently hard-coded to exist at the end of the table columns, you can see it here
Simply swapping this order around will have the effect you’re looking for, but this is something that I think should be tested well to ensure it doesn’t break layouting or other aspects of the Table functionality.
So, not currently configurable, but you are welcome to make a feature request for it if its something you would like to be considered. Hope it helps!!