ui5-busyindicator accessibility issues

[ee92]

Describe the bug
The ui5-busyindicator is not being read by screenreaders and has no tooltip.

To reproduce
Steps to reproduce the behavior:

1. Using any screenreader (NVDA, JAWS, VoiceOver)
2. go to https://sap.github.io/ui5-webcomponents/playground/components/BusyIndicator/
3. click the 'Fetch List Data' button
4. notice the busy indicator is shown, but nothing read out by the screenreader
5. hover the mouse over any of the 3 busy indicators (Small, Medium, Large) at the top of the page
6. notice there is no tooltip

Expected behavior

1. When the busy indicator is shown, the screenreader should read out "Please wait"
2. When hovered, the 3 dots should have a tooltip reading "Please wait"

Affected components
ui5-busyindicator

Organization:
SuccessFactors

Priority:
Medium

Thank you

[ilhan007]

Hello @SAP/ui5-webcomponents-topic-rd

The BusyIndicator lacks of accessibility. There is a PR that aims to address the issues #2403.
It is up to you if you want to create your own PR/change from scratch or review the existing one #2403. You can find what speech is missing in the description.

BR,
ilhan

[ilhan007]

Hello @ee92 the BusyIndicator's a11y support has been improved baed on your findings in 0.29.13