refactor: further test suite changes #1890

Job	Run time
Prepare CI	2s
Lint App / biomejs	25s
Tests / Run Tests	2m 28s
Tests / SonarQube Cloud Analysis	1m 1s
Build / Build macOS (electron-builder)	3m 55s
Build / Build Linux (electron-builder)	4m 8s
Build / Build Windows (electron-builder)	2m 25s
	14m 24s

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