Clean up types in NotebookRender component
Clean up types in NotebookRender component

nteract/nteract,nteract/composition,nteract/nteract,nteract/nteract,rgbkrk/nteract,nteract/nteract,rgbkrk/nteract,rgbkrk/nteract,nteract/nteract,nteract/composition,rgbkrk/nteract,nteract/composition,rgbkrk/nteract