OZG-6989 7375 icons vereinheitlichen

.../lib/button-with-spinner/button-with-spinner.component.ts

...n-system/src/lib/icons/check-icon/check-icon.component.ts

...ign-system/src/lib/icons/save-icon/save-icon.component.ts

...ign-system/src/lib/icons/send-icon/send-icon.component.ts

...rgang-detail-bescheiden-bescheid-versenden.component.html

...rchive-container/vorgang-archive-container.component.html

...ive-container/vorgang-archive-container.component.spec.ts

...-export-container/vorgang-export-container.component.html

...-export-container/vorgang-export-container.component.scss

...port-container/vorgang-export-container.component.spec.ts

...ng-export-container/vorgang-export-container.component.ts

...ontainer/vorgang-process-vorgang-container.component.html

...ient/libs/vorgang-detail/src/lib/vorgang-detail.module.ts