[stable30] fix(ShareAPI): Send mails for mail shares by default #13060

Job	Run time
changes	10s
integration-sqlite (capabilities_features, 8.1, stable30)	2m 50s
integration-sqlite (collaboration_features, 8.1, stable30)	4m 8s
integration-sqlite (comments_features, 8.1, stable30)	3m 17s
integration-sqlite (dav_features, 8.1, stable30)	7m 49s
integration-sqlite (features, 8.1, stable30)	11m 18s
integration-sqlite (federation_features, 8.1, stable30)	5m 16s
integration-sqlite (--tags ~@large files_features, 8.1, stable30)	17m 12s
integration-sqlite (filesdrop_features, 8.1, stable30)	2m 24s
integration-sqlite (openldap_features, 8.1, stable30)	2m 51s
integration-sqlite (openldap_numerical_features, 8.1, stable30)	2m 47s
integration-sqlite (ldap_features, 8.1, stable30)	1m 11s
integration-sqlite (remoteapi_features, 8.1, stable30)	2m 23s
integration-sqlite (setup_features, 8.1, stable30)	2m 18s
integration-sqlite (sharees_features, 8.1, stable30)	6m 28s
integration-sqlite (sharing_features, 8.1, stable30)	24m 13s
integration-sqlite (videoverification_features, 8.1, stable30)	3m 22s
integration-sqlite-summary	5s
	1h 40m 2s

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