Use addEventListener

[icecream17]

Attempt 2 (See attempt 1: #2722)

I have no idea why this error exists, but at least this is a change since I use removeEventListener too.

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Description of the Change

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Applicable Issues

(theoretical)

fixes #769
fixes #954
resolves #2722

[codecov]

Codecov Report

Merging #2723 (4911998) into master (2053290) will decrease coverage by 0.52%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2723      +/-   ##
==========================================
- Coverage   93.46%   92.93%   -0.53%     
==========================================
  Files         237      237              
  Lines       13213    13213              
  Branches     1900     1900              
==========================================
- Hits        12349    12279      -70     
- Misses        864      934      +70     

Impacted Files	Coverage Δ
lib/worker-manager.js	62.34% <0.00%> (-28.46%)	⬇️
lib/git-shell-out-strategy.js	99.05% <0.00%> (-0.76%)	⬇️
lib/controllers/root-controller.js	84.02% <0.00%> (+0.24%)	⬆️
lib/controllers/commit-controller.js	93.75% <0.00%> (+0.78%)	⬆️

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