src/vs/workbench/contrib/notebook/browser/contrib/find/notebookFindReplaceWidget.ts/NotebookFindInput/setEnabled
class NotebookFindInput:	override setEnabled(enabled: boolean) {
		super.setEnabled(enabled);
		if (enabled && !this._filterChecked) {
			this.regex.enable();
		} else {
			this.regex.disable();
		}
	}