Accessibility - Improve accessibility MultiPageFormPagingDetails

[rickdoesburg]

Which Umbraco Forms version are you using? (Please write the exact version, example: 13.4.0)

13.x.x

Which Umbraco version are you using? (Please write the exact version, example: 13.5.2)

13.6.0

Issue summary

The step indicator of a multipage form uses an ordered list to indicate the number of steps. The current step has a class which can be styled to indicate the current page. However it would be better to use aria-current="step" to indicate the current step in the list

Specifics

No response

Steps to reproduce

1. Create a multi page form
2. Enable the paging details

Expected result / actual result

An accessible step indicator using the correct aria-attributes