[Seamless] Add any Lens visualization to a dashboard

[ryankeairns]

Summary

As a user, when I see something interesting that I would like to monitor in/add to a dashboard, it should be easy to do that in context.

Problem

Starting from a fresh dashboard is the most obvious way to build up said dashboard. However, sometimes you see things in disparate areas of (the ever growing!) Kibana landscape and you'd like to easily access them on a regular basis. As it stands today, many of those visualizations are likely not exposed to the Dashboard app/Visualize library as a thing you can add (think: Observability user). Even if it were available to be added, good luck finding it in a see of 1000s of visualizations.

Proposed solution

As more and more teams/products/Solutions use Lens or Maps "under the hood" to embed visualizations in their UIs, imagine if those embedded visualizations exposed some common actions such as 'Add to dashboard'. Within Lens, we have an existing UI modal for adding a visualization to a dashboard (new or existing). Suppose that modal was triggered from the 'Add to dashboard' action and resulted in a confirmation toast once added.

From Lens visualization

From proposed Lens preview tray

From proposed Maps preview tray

Save to dashboard UI in Lens

[elasticmachine]

Pinging @elastic/kibana-vis-editors @elastic/kibana-vis-editors-external (Team:VisEditors)

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[ThomThomson]

Closing this as it's a little too broad. We do have the copy to dashboard modal which works great, but it seems like most places that have Lens don't show this. I think we should open issues on a case-by-case basis for places that use Lens Embeddables but for one reason or another don't show the copy to dashboard action.