Force focus out of webview when cell list focus changes

Have to fix again after changing how cell list focus works

src/vs/workbench/contrib/notebook/browser/view/notebookCellList.ts

@@ -66,6 +66,10 @@ export class NotebookCellList extends WorkbenchList<CellViewModel> implements ID
 				}
 			});
 			this._previousFocusedElements = e.elements;
+
+			if (document.activeElement && document.activeElement.classList.contains('webview')) {
+				super.domFocus();
+			}
 		}));
 
 		const notebookEditorCursorAtBoundaryContext = NOTEBOOK_EDITOR_CURSOR_BOUNDARY.bindTo(contextKeyService);