Midi port selection based on selected controller

[modyf01]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.37%. Comparing base (6b7f955) to head (a8cb9fb).

❗ Current head a8cb9fb differs from pull request most recent head 813be66

Please upload reports for the commit 813be66 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #79      +/-   ##
==========================================
+ Coverage   96.31%   96.37%   +0.06%     
==========================================
  Files          15       15              
  Lines        1058     1077      +19     
==========================================
+ Hits         1019     1038      +19     
  Misses         39       39              

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[lukaszsmolinski]

Fix pre-commit.

Try clicking 'Start handling' when at least one port is not selected ((none)). An exception is raised because there is None as a value in the dict. And pydantic model expects only str. It should be fixed.