Dtale

* [726](https://github.com/man-group/dtale/issues/726): updated `global_state.set_app_settings` to persist updates to instance settings

* [726](https://github.com/man-group/dtale/issues/726): fix for turning off header editor using `dtale.show`

* [726](https://github.com/man-group/dtale/issues/726): added option to turn off header editor
* [700](https://github.com/man-group/dtale/issues/700): export all charts in one HTML file
* [592](https://github.com/man-group/dtale/issues/592): highlight rows of a dataframe filter
* [647](https://github.com/man-group/dtale/issues/647): added option to auto-hide columns consisting entirely of NaN values

* [659](https://github.com/man-group/dtale/issues/659): editing cells with predefined values
* [692](https://github.com/man-group/dtale/issues/692): updated dash to throw regular exceptions instead of 204s when in Google Colab

* Updated usage to dash_bootstrap_components.Checkbox to be backwards compatible

* [719](https://github.com/man-group/dtale/issues/719): allow NaN values in groupby
* Updated cell editor and header editor to use select dropdown on category columns
* [708](https://github.com/man-group/dtale/issues/708): render boolean column values as checkboxes)