Tooltip defined for 'More Actions...' icon button in notification is not accessible through keyboard.

[miniwangdali]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.85.2
• OS Version: Windows 11 Enterprise (Windows_NT x64 10.0.22631.3007)

Version: 1.85.2 (user setup)
Commit: 8b3775030ed1a69b13e4f4c628c612102e30a681
Date: 2024-01-18T06:40:10.514Z
Electron: 25.9.7
ElectronBuildId: 26354273
Chromium: 114.0.5735.289
Node.js: 18.15.0
V8: 11.4.183.29-electron.0
OS: Windows_NT x64 10.0.22631

Description

We are building a VS Code extension. We have command to let user specify a color. The command will throw an error and trigger an error notification in VS Code when the color is invalid. During the accessibility test, the tester reported that the tooltip （I guess we simply use title attribute) of "More Actions..." icon button is not accessible through keyboard. I think this applies to all the icon buttons in the notification popup.

I noticed there is a similar issue: #132344
But the fix seems to not apply to the icon buttons in the notification popup.

Steps to Reproduce:

1. Find a command that you know how to trigger an error notification.
2. Trigger an error notification and expand it.
3. Open On-Screen Keyboard and use it to navigate through the notification.
4. Notice that tooltip does not show up while navigating through icon buttons.

Recording.2024-01-29.092459.mp4

[meganrogge]

/duplicate #132344