68346: Cleanup of bootstrap col classes in item-bitstream components

...-item-page/item-bitstreams/item-bitstreams.component.html

...it-item-page/item-bitstreams/item-bitstreams.component.ts

...itstream-bundle/item-edit-bitstream-bundle.component.html

...tream-bundle/item-edit-bitstream-bundle.component.spec.ts

...-bitstream-bundle/item-edit-bitstream-bundle.component.ts

...ist/paginated-drag-and-drop-bitstream-list.component.html

.../paginated-drag-and-drop-bitstream-list.component.spec.ts

...-list/paginated-drag-and-drop-bitstream-list.component.ts

...ms/item-edit-bitstream/item-edit-bitstream.component.html

...item-edit-bitstream/item-edit-bitstream.component.spec.ts

...eams/item-edit-bitstream/item-edit-bitstream.component.ts

...ed/responsive-table-sizes/responsive-column-sizes.spec.ts

.../shared/responsive-table-sizes/responsive-column-sizes.ts

...red/responsive-table-sizes/responsive-table-sizes.spec.ts

...p/shared/responsive-table-sizes/responsive-table-sizes.ts