Fix recording window shutting down

[chidiwilliams]

No description provided.

[codecov]

Codecov Report

Merging #326 (1c76ef8) into main (70ad8f9) will increase coverage by 3.49%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main     #326      +/-   ##
==========================================
+ Coverage   78.11%   81.61%   +3.49%     
==========================================
  Files           8        8              
  Lines        1595     1599       +4     
==========================================
+ Hits         1246     1305      +59     
+ Misses        349      294      -55     

Flag	Coverage Δ
Windows	?
macOS	81.61% <50.00%> (+3.74%)	⬆️

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Impacted Files	Coverage Δ
buzz/transcriber.py	78.27% <0.00%> (+2.93%)	⬆️
buzz/model_loader.py	69.15% <50.00%> (-0.37%)	⬇️
buzz/gui.py	83.52% <62.50%> (+4.27%)	⬆️
buzz/recording.py	80.00% <0.00%> (+12.00%)	⬆️

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