Build Storybooks on CI

[streamich]

To make sure all Storybooks work, we need to build all of them on CI. A static version with --site flag. Like:

yarn storybook canvas --site
yarn storybook embeddable --site
yarn storybook apm --site
...

Along with the each plugins' Storybook we'll need to publish a composite Storybook, which does not include stories itself (except maybe a README) and includes definitions (which can be derived from the aliases) for the other published Storybooks.

We would like to have links to builds for stories in GitHub pull request comments. This does not need to be completed as part of this issue, but make sure such an issue exists before closing this one.

Depends on: #57628
Parent issue: #54707

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)

[elasticmachine]

Pinging @elastic/kibana-app-arch (Team:AppArch)

[tylersmalley]

As an update here, this is tentatively planned for 7.12.

[brianseeders]

@streamich would you mind taking a look at what I have so far here (from a functionality standpoint)? #87701