[O11y][Stan] Migrate Channel Overview Metrics Dashboard Visualizations to Lens

[milan-elastic]

Urgency

• High

Activity Type

• Enhancement

What does this PR do?

• Manually migrate Stan visualizations to the lens in the current Kibana version 8.10.2 itself.

• Statistics for Stan Lens migration:

Migration stats

	Before Migration		After Migration
	Lens	Vizualization	Lens	Vizualization
[Metrics Stan] Channel Overview Metrics	0	2	2	0

Checklist

• I have added an entry to my package's changelog.yml file.
• I have verified that panels are populated with data.
• I have verified that panels are not distorted after being migrated to the lens.
• I have updated screenshots of the dashboard.
• I have verified that the data counts are matching and panel aggregations are the same as before.

Author's Checklist

• Migrated panels should be removed from visualization folder.
• Migrated visualizations are populating in current Kibana version 8.10.2 itself.

Related issues

• Relates [O11y][Stan] Stan Lens migration #7778

Screenshots

Before Migration:

After Migration:

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2023-10-13T10:23:37.843+0000

• Duration: 19 min 33 sec

Test stats 🧪

Test	Results
Failed	0
Passed	25
Skipped	0
Total	25

🤖 GitHub comments

Expand to view the GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (1/1)	💚 3.301
Classes	100.0% (1/1)	💚 3.301
Methods	100.0% (20/20)	💚 7.411
Lines	95.477% (190/199)	👍 7.088
Conditionals	100.0% (0/0)	💚

[rajvi-patel-22]

LGTM!

[tommyers-elastic]

would it be possible to see before/after images over the same time period to directly compare the charts?

[milan-elastic]

would it be possible to see before/after images over the same time period to directly compare the charts?

Done @tommyers-elastic I have updated the before/after screenshot in description now!

[tommyers-elastic]

LGTM

[MichaelKatsoulis]

LGTM

[elasticmachine]

Package stan - 1.3.4 containing this change is available at https://epr.elastic.co/search?package=stan