src/vs/workbench/contrib/notebook/browser/contrib/find/notebookFindWidget.ts/NotebookFindWidget/onInputChanged
class NotebookFindWidget:	protected onInputChanged(): boolean {
		this._state.change({ searchString: this.inputValue }, false);
		// this._findModel.research();
		const findMatches = this._findModel.findMatches;
		if (findMatches && findMatches.length) {
			return true;
		}

		return false;
	}