Clearer separation between items in repeating groups in Summary 2

### Description

Currently, it is difficult to distinguish between items in a repeating group in the Summary 2 view because there is only minimal spacing between them. This lack of clear separation makes the summary harder to read and understand.

Could the Summary 2 component be enhanced to provide a clearer visual separation between items in repeating groups?

### Additional Information

_No response_

Start by locating the Summary 2 component and its repeating-group item rendering in the frontend. Inspect how spacing is currently applied between items, then verify that repeating-group entries have a visibly clearer separation and that the Summary 2 view remains readable.

Written by the indexing model from the issue text.