UI fixes and code refactoring

...lar/src/app/common/search-table/search-table.component.ts

.../domain-details-dialog/domain-details-dialog.component.ts

...etails-dialog/service-group-details-dialog.component.html

...-details-dialog/service-group-details-dialog.component.ts

...c/app/service-group-edit/service-group-edit-controller.ts

...rc/app/service-group-edit/service-group-edit.component.ts

...etadata-dialog/service-group-metadata-dialog.component.ts

...user/user-details-dialog/user-details-dialog.component.ts

...in/java/eu/europa/ec/edelivery/smp/data/ui/SmpInfoRO.java

...a/ec/edelivery/smp/services/ui/UIServiceGroupService.java

...opa/ec/edelivery/smp/services/ui/UITruststoreService.java

...eu/europa/ec/edelivery/smp/services/ui/UIUserService.java

...elivery/smp/services/ui/UIUserServiceIntegrationTest.java

...opa/ec/edelivery/smp/ui/external/ApplicationResource.java