The "Focused Resources" view doesn't auto-refresh after creating a new web app

[v-chenzha]

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OS: Win 10 Build Version: 20230524.1 Regression: Not a Regression

Repro Steps:

1. Click "Focus Group" icon to focus the "App Services" node.
2. Create a web app from "Resources" view or "Command Palette".
3. Check whether the new created web app shows in the "Focused Resources" view.

Expect: The new created web app shows in the "Focused Resources" view.

Actual: The new created web app doesn't show in the "Focused Resources" view.

More Info: Refresh the "Focused Resources" view can fix this issue.