[Discover] Deangularize Skip to bottom button

[kertal]

The part of Discover displaying a Skip to bottom Button is still Angular. It should be converted to React using EUI. Note that it's only displayed when it gets focus, it's here for keyboard navigation.

Note that it's part of the legacy table, to be removed with EuiDataGrid

Here's the current markup in the Angular Template:

kibana/src/plugins/discover/public/application/angular/discover.html

Line 79 in 2a32f8f

<button

Instructions how to do this are similar to #65326

How to view the button: Set focus on

Use shift-Tab to navigate back to the button, that should be visible then

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[kertal]

Dear @myasonik, from a11y standpoint, does it even make sense the way it's currently implemented for the legacy table (Won't be needed when we use EuiDataGrid, that's for sure)?

[myasonik]

Nope, the current implementation isn't worth keeping around once DataGrid is implemented. (It's axed in my PR.)

I'd probably just leave it as is and phase it out at the same time as the current Discover table.

[kertal]

@myasonik I'm aware it makes no sense for DataGrid, but for the legacy mode it makes sense, right? thx

[myasonik]

Yeah, I'd keep it for the legacy mode