(Accessibility) (ML) WCAG 4.1.2 Name, Role, Value - Buttons must have discernible text

[barlowm]

Steps to reproduce Open Kibana and navigate to the "Machine Learning" section then tab through the buttons, the Screen Reader should announce the label associated with each button. In the case of the highlighted button in the screenshot, the Screen Reader only announces "Jobs in group Button". Screen Reader should read something to the effect of "Jobs in group button unsorted. Clicking will sort ascending" (or words to that effect as appropriate), to inform the user that the column is currently unsorted and can be sorted in ascending or descending order

This occurs in multiple locations within the "Machine Learning" pages.

Screen Shot

Expected Result Activating the "Jobs in group" component, the screen reader should read "Jobs in group button unsorted. Clicking will sort ascending"

Kibana Version: Kibana-8.13.2

OS: Windows

Screen Reader: NVDA ver 2024.3

Browser: Chrome

Relevant WCAG Criteria: WCAG Criterion - 4.1.2 Name, Role, Value - Level A