Will close the app on task finish in CLI

[raivisdejus]

Fix for #993

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 80.95%. Comparing base (c181a28) to head (d575a7a).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
buzz/widgets/main_window.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #995      +/-   ##
==========================================
- Coverage   81.19%   80.95%   -0.24%     
==========================================
  Files          86       86              
  Lines        5041     5047       +6     
==========================================
- Hits         4093     4086       -7     
- Misses        948      961      +13     

Flag	Coverage Δ
Linux	79.96% <75.00%> (-0.24%)	⬇️
Windows	80.01% <75.00%> (-0.26%)	⬇️
macOS	80.78% <75.00%> (-0.24%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.