Add speaker identification

[raivisdejus]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 61.39818% with 127 lines in your changes missing coverage. Please review.

Project coverage is 77.62%. Comparing base (8065462) to head (46f95fa).
Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
...nscription_viewer/speaker_identification_widget.py	60.45%	121 Missing ⚠️
...ranscription_viewer/transcription_viewer_widget.py	76.47%	4 Missing ⚠️
...anscription_viewer/transcription_resizer_widget.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1139      +/-   ##
==========================================
- Coverage   79.72%   77.62%   -2.11%     
==========================================
  Files          87       88       +1     
  Lines        5391     5715     +324     
==========================================
+ Hits         4298     4436     +138     
- Misses       1093     1279     +186     

Flag	Coverage Δ
Linux	77.62% <61.39%> (-0.96%)	⬇️
Windows	?
macOS	?

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