[O11y][Azure Metrics] Migrate File Storage Overview dashboard to lens

[kush-elastic]

Urgency

• High

Activity Type

• Enhancement

What does this PR do?

• Manually migrate Azure File Storage visualizations to the lens in the current Kibana version 8.9.0 itself.

• Statistics for Azure File Storage Lens migration:

Migration stats

	Before Migration			After Migration
	Lens	Visualization	Old Input Controls	Lens	Visualization	New control panels
[Azure Metrics] File Storage Overview	0	11	1	11	0	1

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 8.4.0 itself.

Related issues

• Closes [O11y][Azure Metrics] Azure Storage Account Lens migration  #7434

Before Migration

After Migration

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2023-09-13T06:37:29.699+0000

• Duration: 15 min 42 sec

Test stats 🧪

Test	Results
Failed	0
Passed	34
Skipped	0
Total	34

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (4/4)	💚
Files	100.0% (4/4)	💚 2.695
Classes	100.0% (4/4)	💚 2.695
Methods	75.758% (25/33)	👎 -16.506
Lines	100.0% (32/32)	💚 11.671
Conditionals	100.0% (0/0)	💚

[zmoog]

The file and share count values have decimals:

Shouldn't these be integer values?

[kush-elastic]

@zmoog ,
Both the visualizations were already using Average aggregation before migration, we will need to create new tickets to address this issue. As part of this PR scope, our focus will be only on migration.

[kush-elastic]

@zmoog,
As discussed here I think we can unblock this PR as well.

[rajvi-patel-22]

LGTM!

[zmoog]

As discussed at #7662 (comment), @kush-elastic will open a dedicated issue to address the decimals in the count.

[elasticmachine]

Package azure_metrics - 1.0.43 containing this change is available at https://epr.elastic.co/search?package=azure_metrics