fix user-management sonar issues and adjust modal close button. #30863

Job	Run time
build-matrix	9s
ng-default (n20.11.1/j17)	14m 39s
ng-default-additional (n20/j21)	11m 5s
ng-mysql-es-noi18n-mapsid (n20/j17)	10m 42s
ng-mongodb-kafka-cucumber (n20.11.1/j21)	11m 49s
ng-h2mem-ws-nol2 (n20.11.1/j17)	11m 17s
ng-gradle-fr (n20/j21)	10m 47s
ng-gradle-mariadb-oauth2-infinispan (n20/j17)	11m 27s
ng-gradle-h2disk-ws-nocache (n20.11.1/j21)	12m 18s
ng-webflux-mongodb (n20.11.1/j17)	10m 30s
ng-webflux-gradle-mongodb-oauth2 (n20/j21)	10m 42s
ng-webflux-psql-default (n20.11.1/j17)	10m 14s
ng-webflux-psql-additional (n20/j21)	6m 22s
ng-webflux-gradle-session-h2mem-es (n20/j17)	10m 2s
ms-ng-consul-oauth2-mongodb-caffeine (n20.11.1/j17)	9m 43s
mf-ng-eureka-jwt-psql-ehcache (n20/j21)	15m 43s
ms-mf-ng-consul-oauth2-neo4j (n20/j17)	13m 5s
check-angular	1s
	3h 0m 35s

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