Combine each individual response with its attachments into one response folder

## Opportunity

Following the research sessions on [response](https://app.zenhub.com/workspaces/gcforms-60cb8929764d71000e481cab/issues/zh/364) and [attachment](https://app.zenhub.com/workspaces/gcforms-60cb8929764d71000e481cab/issues/zh/366) downloads through the UI, users shared their confusion of the duplicate file organisation between html responses and their associated attachments.

A [workshop](https://miro.com/app/board/uXjVJhJpoyo=/?moveToWidget=3458764650900225446&cot=14) with the product team identified a potential solution to this pain point: **Combine each individual response with its attachments into one response folder**.

## Prioritization
This opportunity was prioritized at a Strategic bets level (High impact, High effort) by the product leads
The implementation of this solution is also dependent of the insights collected in the M365 integration research [#6767](https://app.zenhub.com/workspaces/gcforms-60cb8929764d71000e481cab/issues/gh/cds-snc/platform-forms-client/6767)