refactor: fix issues identified by sonar #310

Job	Run time
Prepare CI	1s
Lint App / biomejs	20s
Tests / Run Tests	3m 37s
Tests / SonarQube Cloud Analysis	54s
Build / Build Windows (electron-builder)	2m 14s
Build / Build Linux (electron-builder)	3m 41s
Build / Build macOS (electron-builder)	3m 45s
	14m 32s

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