Client: clean up some sonar issues

goofy-client/apps/goofy/src/app/app.component.ts

goofy-client/apps/goofy/src/environments/environment.ts

goofy-client/libs/command-shared/src/lib/command.service.ts

...ient/libs/environment-shared/src/lib/environment.model.ts

...client/libs/forwarding-shared/src/lib/forwarding.model.ts

...mular/vorgang-forward-form/vorgang-forward.formservice.ts

...client/libs/kommentar-shared/src/lib/kommentar.service.ts

...ibs/navigation/src/lib/navigation/navigation.component.ts

goofy-client/libs/tech-shared/src/lib/tech.util.ts

...bs/tech-shared/src/lib/validation/tech.validation.util.ts

...src/lib/ui/validation-error/validation-error.component.ts

...page/vorgang-detail-area/vorgang-detail-area.component.ts

...gang-detail-body/antragsteller/antragsteller.component.ts

...nt/libs/vorgang-shared/src/lib/vorgang-command.service.ts