Reimplement expand using SnakemakeFormatter instead of Snakemake's expand#526

Copilot wants to merge 2 commits intomainkhanlab/snakebids:mainfrom

copilot/reimplement-expand-snakemakeformatterkhanlab/snakebids:copilot/reimplement-expand-snakemakeformatterCopy head branch name to clipboard