fix: remove zarr.convenience

[ilan-gold]

• Closes #
• Tests added

• Release note not necessary because: dev change

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.48%. Comparing base (f0b812b) to head (7a88c8d).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2388       +/-   ##
===========================================
+ Coverage   63.35%   85.48%   +22.13%     
===========================================
  Files          49       49               
  Lines        7753     7753               
===========================================
+ Hits         4912     6628     +1716     
+ Misses       2841     1125     -1716     

see 33 files with indirect coverage changes