[Component amendment]: Chevron location

## Accordion

## Visual

## Context

Current accordion only allows for a chevron on the left, but there are use cases where accordion is used for a dropdown, where accordion should be allowed on the right as well.

Start by locating the Accordion component and its existing chevron-position styling; compare the three supplied visuals to understand the intended left and right placements. Done means the accordion supports a right-side chevron for dropdown use cases while retaining the current left-side option, matching the requested visuals.

Written by the indexing model from the issue text.