Small things addressed from review meeting

[konstntokas]

Pull Request Summary

This PR includes the following updates:

• CDSE Sentinel-2 Viewing Angle Dataset:
  The dimension of the viewing angle dataset has been updated to (time, angle, band, angle_y, angle_x).

• Package Visibility Update:
  The package _utils has been made public and is now called utils.

• Unified Open Parameters:
  All data opener-specific open parameters are now consolidated into a single keyword argument.
  This argument holds a dictionary where keys follow the structure <data_type>:<format_id>.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.30%. Comparing base (4748bf6) to head (fbdb133).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #32      +/-   ##
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- Coverage   98.30%   98.30%   -0.01%     
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  Files          16       16              
  Lines        1180     1179       -1     
==========================================
- Hits         1160     1159       -1     
  Misses         20       20              

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