fix: Properly calculate intermediate icon for touch icon generation #10218

Job	Run time
changes	6s
integration-sqlite (capabilities_features, 8.1, main)	3m 0s
integration-sqlite (collaboration_features, 8.1, main)	5m 5s
integration-sqlite (comments_features, 8.1, main)	3m 39s
integration-sqlite (dav_features, 8.1, main)	9m 48s
integration-sqlite (features, 8.1, main)	12m 0s
integration-sqlite (federation_features, 8.1, main)	6m 31s
integration-sqlite (--tags ~@large files_features, 8.1, main)	13m 32s
integration-sqlite (filesdrop_features, 8.1, main)	3m 0s
integration-sqlite (openldap_features, 8.1, main)	3m 14s
integration-sqlite (openldap_numerical_features, 8.1, main)	59s
integration-sqlite (ldap_features, 8.1, main)	2m 57s
integration-sqlite (remoteapi_features, 8.1, main)	57s
integration-sqlite (setup_features, 8.1, main)	52s
integration-sqlite (sharees_features, 8.1, main)	2m 49s
integration-sqlite (sharing_features, 8.1, main)	11m 16s
integration-sqlite (videoverification_features, 8.1, main)	3m 14s
integration-sqlite-summary	4s
	1h 23m 3s

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