Fix plot module

[justinngan92]

• Update usage of vfo module in code and docs
• Update version release

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.28%. Comparing base (cc0fb4a) to head (9791e31).
Report is 7 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #107      +/-   ##
==========================================
- Coverage   87.30%   87.28%   -0.03%     
==========================================
  Files          16       16              
  Lines        4522     4514       -8     
==========================================
- Hits         3948     3940       -8     
  Misses        574      574              

Files with missing lines	Coverage Δ
src/ospgrillage/__init__.py	100.00% <100.00%> (ø)
src/ospgrillage/osp_grillage.py	82.19% <ø> (-0.02%)	⬇️
tests/test_osp_grillage.py	97.02% <ø> (ø)

... and 7 files with indirect coverage changes

[justinngan92]

main version ready for release - please check

[ccaprani]

Addresses #98