[Accessibility][Screen reader - Property Pane_Ask a question (Bot Asks)]: Incorrect role is announced for ? as button in property pane.

[ashish315]

User Experience
User who rely on screen reader will get confused if incorrect role is announced by the screen reader.

Test Environment
Browser: Microsoft Edge Canary Version: 82.0.425.0 (Official build)
OS build: 2004 (19564.1005)
Screen Reader: Narrator
URL: Bot Framework Composer
Prerequisite Here

Repro Steps:

1. Open the above mentioned URL in EDGE and turn on narrator.
2. Navigate to already created dialog tree item and activate it. Such as- Greetings, Actions, EndDialog etc.
3. Click on "+" and select 'Ask a question'. Then select any of the available options except Oauth login.
4. Navigate to property pane appeared at right side of the screen.
5. Now, navigate to '?' just beside of 'Prompt.
6. Observe the issue.

Actual:
On getting the focus, narrator announces role as button along with the descriptive information.

Expected:
As it has no functionality, the narrator shouldn't announce the control as button.

Note:
Same issue is observed for all the Property Pane which have "?".

MAS Reference: MAS4.2.1

Attachment:
MAS4.1.2_incorrect role is defined.zip

[ashish315]

@cwhitten @beyackle As checked on below environment the issue is still repro.

Test Environment
Browser: Microsoft Edge Dev {Version 83.0.467.0 (Official build) dev (64-bit)}
Browser: Microsoft Edge Canary {Version 83.0.474.0 (Official build) canary (64-bit)}
OS build: 2004 (19588.1000)
Screen Reader: Narrator
URL: Bot Framework Composer
Prerequisite Here