[3pt] - Display reservations for a given item on the Reservations pop-up - Student C

When the popup loads, the webapp retrieves data from the [Involvement API](https://www.notion.so/microverse/Involvement-API-869e60b5ad104603aa6db59e08150270) to show the item's reservations.

This task **does not** include the counter of the reservations.

Start at the Reservations pop-up and review how the webapp retrieves data from the linked Involvement API when the popup loads. Done means the given item's reservations are displayed in the popup; the reservations counter is explicitly out of scope.

Written by the indexing model from the issue text.