src/vs/workbench/contrib/webview/browser/dynamicWebviewEditorOverlay.ts/DynamicWebviewEditorOverlay/dispose
class DynamicWebviewEditorOverlay:	override dispose() {
		this._isDisposed = true;

		this._container?.remove();
		this._container = undefined;

		this._onDidDispose.fire();

		super.dispose();
	}