[Synthetics] Fix default date range on errors page

[shahzad31]

Summary

Fixes #155472

Make sure it's doesn't get's reset to last 15 mins. Always keep default to last 24h on load

[elasticmachine]

Pinging @elastic/uptime (Team:uptime)

[apmmachine]

🤖 GitHub comments

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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: 73e9c05

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	-146.0B

Unknown metric groups

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	17	19	+2
securitySolution	395	398	+3
total			+5

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	18	20	+2
securitySolution	475	478	+3
total			+5

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

[dominiqueclarke]

LGTM!