[Security Solution] make copytoclipboard component more generic

[PhilippeOberti]

Summary

When we created the CopyToClipboard a few months ago, it was used only in one place, for the Share alert functionality in the flyout's header.

A few weeks ago we used it for the new Json tab. Both UI were similar enough at the time, so only a minor refactor of the component was necessary to support both cases.

Since then the Share alert button has been changed to a single icon (no text). If we still want to use the same shared component, we need it to support both EuiButtonIcon and EuiButtonEmpty as the render is slightly different between the 2 (EuiButtonEmpty has some weird internal padding between the icon and the text, which means that the icon isn't centered when there isn't any text displayed).

This PR redesigns the CopyToClipboard, instead of having it handle multiple renders, it's easier and more flexibile to have the component do the copy functionality only, and let the parent component decide what needs to be rendered.

Checklist

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Unit or functional tests were updated or added to match the most common scenarios
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 86325bc
• Storybooks Preview

Failed CI Steps

• FTR Configs #22
• Serverless Security Cypress Tests #4

Test Failures

• [job] [logs] FTR Configs #22 / security app - OIDC interactions URL capture can login preserving original URL
• [job] [logs] Serverless Security Cypress Tests #4 / Use Value list in exception entry Should use value list in exception entry, and validate deleting value list prompt Should use value list in exception entry, and validate deleting value list prompt

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	13.0MB	13.0MB	-315.0B

History

• 💚 Build #175548 succeeded db61e80b4155c271abc342fc857ce94b6c5e048d
• 💔 Build #175520 failed 730f73c00ab419ac504ac0b09e118061640d0689
• 💛 Build #173674 was flaky 5f38244bf845789ad6c468031f6cd6305b4ad307

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