[Synthetics][Uptime][Ux] Update imports of hooks and components from Observability to Observability Shared

[CoenWarmer]

Resolves #157857

📝 Summary

This PR updates imports of hooks and components from Observability to Observability Shared.

It builds on the preparation work done in #157848.

More information on the progress in the epic.

✅ Acceptance criteria

• Everything should work as before.

[elasticmachine]

Pinging @elastic/uptime (Team:uptime)

[apmmachine]

🤖 GitHub comments

Expand to view the GitHub comments

Just comment with:

• /oblt-deploy : Deploy a Kibana instance using the Observability test environments.
• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 0bc520b

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
synthetics	1.2MB	1.2MB	-6.0B
ux	164.8KB	164.9KB	+22.0B
total			+16.0B

Unknown metric groups

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	19	21	+2
securitySolution	400	404	+4
total			+6

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	20	22	+2
securitySolution	480	484	+4
total			+6

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[shahzad31]

Phew 116 clicks :)

Thank you for doing it !!