OZG-1274 OZG-1343 Briefumschlag anzeigen

goofy-client/libs/ui/src/lib/assets/mail.svg

goofy-client/libs/ui/src/lib/icon/icon.model.ts

goofy-client/libs/vorgang-shared-ui/src/index.ts

...ng-postfach-status/vorgang-postfach-status.component.html

...ng-postfach-status/vorgang-postfach-status.component.scss

...postfach-status/vorgang-postfach-status.component.spec.ts

...gang-postfach-status/vorgang-postfach-status.component.ts

...ibs/vorgang-shared-ui/src/lib/vorgang-shared-ui.module.ts

.../lib/vorgang-status-dot/vorgang-status-dot.component.scss

goofy-client/libs/vorgang-shared-ui/src/test-setup.ts

goofy-client/libs/vorgang-shared/src/lib/vorgang.model.ts

goofy-client/libs/vorgang-shared/test/vorgang.ts

...g-list/vorgang-list-item/vorgang-list-item.component.html

...g-list/vorgang-list-item/vorgang-list-item.component.scss