OZG-725-7894 dialog container

alfa-client/libs/design-system/src/index.ts

...c/lib/dialog-container/dialog-container.component.spec.ts

...em/src/lib/dialog-container/dialog-container.component.ts

...tton-container/forwarding-button-container.component.html

...tainer/forwarding-dialog/forwarding-dialog.component.html

...ner/forwarding-dialog/forwarding-dialog.component.spec.ts

...ontainer/forwarding-dialog/forwarding-dialog.component.ts

...tions-einheit/search-organisations-einheit.component.html

...ns-einheit/search-organisations-einheit.component.spec.ts

...-dialog/search-selected/search-selected.component.spec.ts