refactor: Use __all__ to expose public API

[edgarrmondragon]

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📚 Documentation preview 📚: https://citric--935.org.readthedocs.build/en/935/

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[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (44dceb4) 100.00% compared to head (682fe3e) 100.00%.
Report is 1 commits behind head on main.

❗ Current head 682fe3e differs from pull request most recent head 7c3ac0f. Consider uploading reports for the commit 7c3ac0f to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #935   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         8           
  Lines          417       420    +3     
  Branches        22        22           
=========================================
+ Hits           417       420    +3     

Files Changed	Coverage Δ
src/citric/client.py	100.00% <100.00%> (ø)
src/citric/enums.py	100.00% <100.00%> (ø)
src/citric/method.py	100.00% <100.00%> (ø)

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication