add an 'x' button to close the error messages popup

[chriddyp]

Currently you have to click on the devtools icon and then toggle errors button.

[chriddyp]

In this UI

[Biswa5812]

Where is this particular UI available, under which folder?

[chriddyp]

@Biswa5812 - It's in here: https://github.com/plotly/dash/tree/dev/dash-renderer/src/components/error/FrontEnd

[chriddyp]

@Biswa5812 - Let us know if you end up taking a look at this one! This would be a good first issue to get started contributing to Dash.

[Sable-20]

Quick update for anyone looking at this
https://github.com/plotly/dash/tree/dev/dash/dash-renderer/src/components/error/FrontEnd
issue can be found here, there was a update adding /dash/