Add optional label configuration for binary sensor

[chrisdoherty4]

No description provided.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 43.54839% with 35 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.33%. Comparing base (c746635) to head (df493a1).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
custom_components/maint/websocket.py	21.62%	29 Missing ⚠️
frontend/src/task/index.ts	82.35%	0 Missing and 3 partials ⚠️
frontend/src/task/form/view.ts	50.00%	0 Missing and 2 partials ⚠️
frontend/src/task/update/controller.ts	75.00%	0 Missing and 1 partial ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
- Coverage   65.88%   65.33%   -0.56%     
==========================================
  Files          28       28              
  Lines        1870     1921      +51     
  Branches      173      182       +9     
==========================================
+ Hits         1232     1255      +23     
- Misses        541      564      +23     
- Partials       97      102       +5     

Flag	Coverage Δ
frontend	57.80% <76.00%> (+0.50%)	⬆️
unittests	70.50% <21.62%> (-1.28%)	⬇️

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