docs: clarify `outputMode` description in application schema #2303

Job	Run time
list	27s
workflow (devkit-core-tests)	1m 24s
workflow (build-unit-tests)	2m 32s
workflow (build-cli)	1m 31s
workflow (devkit-core-tests-rerun)	1m 17s
workflow (modules-builder-tests)	1m 46s
	8m 57s

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