OZG-6311 clear collaboration request result (workaround until loading is implemented)

...tion-shared/src/lib/organisations-einheit.service.spec.ts

...aboration-shared/src/lib/organisations-einheit.service.ts

...iner/collaboration-in-vorgang-container.component.spec.ts

...container/collaboration-in-vorgang-container.component.ts

...h-shared/src/lib/resource/resource-search.service.spec.ts

...s/tech-shared/src/lib/resource/resource-search.service.ts