OZG-5981 add component for download archive file; tiny code improvements

alfa-client/libs/binary-file/src/lib/binary-file.module.ts

...ner/download-archive-file-button-container.component.html

.../download-archive-file-button-container.component.spec.ts

...ainer/download-archive-file-button-container.component.ts

...binary-file-list/vertical-binary-file-list.component.html

...ary-file-list/vertical-binary-file-list.component.spec.ts

...l-binary-file-list/vertical-binary-file-list.component.ts

...container/vorgang-detail-dateien-container.component.html

...tainer/vorgang-detail-dateien-container.component.spec.ts

...n-container/vorgang-detail-dateien-container.component.ts

alfa-client/libs/vorgang-shared/src/lib/vorgang.linkrel.ts

...de/ozgcloud/alfa/vorgang/VorgangWithEingangProcessor.java