[WCAG 2.1]: Loading Indicators need to announce themselves to screen readers without taking focus

[1Copenut]

Bug Report

• I’ve searched for any related issues and avoided creating a duplicate issue.

What happened

WCAG 2.1 success criteria 4.1.3: Status Messages states that things like loading indicators need to announce themselves to assistive technology without receiving keyboard focus.

What I expected to happen

Screen readers will need to announce our Loading Indicator component without us having to manage focus. This is possible if two conditions are met:

1. The Loading Indicator role="progressbar" is changed to role="status" on line 44
2. The spinner always has a visual text label with it

Acceptance Criteria

• No breaks in the current usability on vets-website
• Unit tests updated accordingly
• 0 axe-core violations in the unit tests