Do not rewrite zarr.json on each operation

[Bisaloo]

As described in

Rarr/R/write_metadata.R

Line 125 in 0f461ab

# FIXME: we really want a partial write to the json file

, we don't want to rewrite zarr.json on each operation (e.g., adding attributes), as this could result in unnecessary formatting diffs.

This issue tracks options to achieve this:

• https://github.com/gaborcsardi/tsjsonc/