Dtale

* [870](https://github.com/man-group/dtale/issues/870): updated Flask SECRET_EKY to be dynamically generated

* [868](https://github.com/man-group/dtale/issues/868): added toggle for missing/populated filter
* [864](https://github.com/man-group/dtale/issues/864): adding main_title params to `dtale.show`
* front-end package upgrades

* [851](https://github.com/man-group/dtale/issues/851): allowing offline_chart to return plotly objects
* [847](https://github.com/man-group/dtale/issues/847): Add 'Select All' option for duplicate check UI
* [856](https://github.com/man-group/dtale/issues/856): adding 'Select All' to cumsum and y-axis select in charts
* [857](https://github.com/man-group/dtale/issues/857): Aggregations popup
* [858](https://github.com/man-group/dtale/issues/858): added 'view_data' property to data instances
* [854](https://github.com/man-group/dtale/issues/854): Raw Pandas Output popup

* Added extra security around whether a custom query can be used to protected against server-side attacks

* Updated front-end packages (namely redux)
* [843](https://github.com/man-group/dtale/issues/843): Chart export background colors
* [787](https://github.com/man-group/dtale/issues/787): force colab host to 0.0.0.0
* [840](https://github.com/man-group/dtale/issues/840): hide 'View Duplicates' button until column is selected
* [837](https://github.com/man-group/dtale/issues/837): frequency table search bug

* Updated web data uploads to be turned off by default
* [835](https://github.com/man-group/dtale/issues/835): fixed bug with `dtale.show(open_browser=True)`
* [834](https://github.com/man-group/dtale/issues/834): fix for plotly tooltips in charts
* [831](https://github.com/man-group/dtale/issues/831): time difference functionality