DS-4107 Update tests and mocks for metadata as map

...-list/community-page-sub-community-list.component.spec.ts

...dify-item-overview/modify-item-overview.component.spec.ts

...ield-components/collections/collections.component.spec.ts

...arch-page/search-results/search-results.component.spec.ts

src/app/core/auth/auth-response-parsing.service.spec.ts

src/app/core/browse/browse.service.spec.ts

...app/core/cache/builders/remote-data-build.service.spec.ts

...p/core/data/browse-items-response-parsing-service.spec.ts

src/app/core/metadata/metadata.service.spec.ts

...ed/comcol-forms/comcol-form/comcol-form.component.spec.ts

src/app/shared/mocks/mock-item.ts

...on-grid-element/collection-grid-element.component.spec.ts

...ity-grid-element/community-grid-element.component.spec.ts

...rid/item-grid-element/item-grid-element.component.spec.ts

...t/collection-search-result-grid-element.component.spec.ts

...lt/community-search-result-grid-element.component.spec.ts

...-result/item-search-result-grid-element.component.spec.ts

...-list-element/browse-entry-list-element.component.spec.ts

...on-list-element/collection-list-element.component.spec.ts

...ity-list-element/community-list-element.component.spec.ts