adjustment of placement webui model to fix placement modification #4225

Job	Run time
Integration Tests (Java 17) (mongodb)	12m 40s
Integration Tests (Java 17) (mongodb)	12m 40s
Integration Tests (Java 17) (hsqldb)	12m 5s
Integration Tests (Java 17) (hsqldb)	8m 58s
Integration Tests (Java 17) (monetdb)	13m 39s
Integration Tests (Java 17) (monetdb)	13m 39s
Integration Tests (Java 17) (postgresql)	12m 15s
Integration Tests (Java 17) (postgresql)	12m 15s
Integration Tests (Java 17) (file)	9m 49s
Integration Tests (Java 17) (file)	9m 49s
Integration Tests (Java 17) (cottontail)	12m 2s
Integration Tests (Java 17) (cottontail)	12m 2s
Integration Tests (Java 17) (neo4j)	11m 37s
Integration Tests (Java 17) (neo4j)	11m 37s
	2h 45m 7s

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