docs: revise commerce modules overview pages #35107

Job	Run time
setup	1m 53s
Shard (0) HTTP Integration Tests	11m 32s
Shard (0) Unit Tests	8m 20s
integration-tests-packages	12m 14s
Shard (0) Module Integration Tests	10m 13s
Shard (1) HTTP Integration Tests	8m 25s
Shard (1) Unit Tests	4m 52s
Shard (1) Module Integration Tests	8m 51s
unit-tests	1s
integration-tests-modules	1s
integration-tests-http	1s
	1h 6m 23s

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