overflowWidgetsDomNode and onDidBlurEditorWidget don't work together

[jrieken]

• open GH issue notebook
• select F2 (rename) on a variable
• 🐛 widget shows, widget hides

The underlying problem is that the rename widget is rooted under the overflowContent-node, e.g not within the editor node, and that causes the editor to loose widget focus as soon as the rename widget gets focus (and in return the rename widget closes because the editor has lost widget focus...)

[alexdima]

The adoption of overflowWidgetsDomNode was temporarily rolled back in the Notebook editors via 3428992 . Let's try to tackle this in September.

[joaomoreno]

Let's move this to cleanup month: October.

[joaomoreno]

Closing since the issue doesn't repro no more.