We should broaden the universe of acceptable input file names

[vreuter]

Right now, we expect a ZARR subfolder and a pair of CSVs, each named in a rather restrictive fashion (e.g., P0001 prefix). This is fine for the moment, but really since a broader universe of position (field of view) names is permitted, this constraint should be relaxed to accommodate the concomitant diversity that's possible for these names.

[vreuter]

The criteria which we should impose are that all three members (the two CSV files and the subfolder of ZARR) to read and visualise are named such that they resolve to the same position/FOV name.