Migrate "[Azure Logs] User Activity" dashboard to Lens

[tdancheva]

What does this PR do?

Migration of "[Azure Logs] User Activity" dashboard to Lens, style changes and changes according to latest dashboard guidelines

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

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• Start Time: 2023-06-20T14:24:16.461+0000

• Duration: 16 min 47 sec

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Test	Results
Failed	0
Passed	83
Skipped	0
Total	83

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (10/10)	💚
Files	86.364% (19/22)	❕
Classes	86.364% (19/22)	❕
Methods	83.333% (155/186)	❕
Lines	84.935% (2802/3299)	❕
Conditionals	100.0% (0/0)	💚

[stratoula]

This looks great, LGTM!

[kaiyan-sheng]

@tdancheva What do you think about updating the dashboard screenshots under img dir?

[tdancheva]

@tdancheva What do you think about updating the dashboard screenshots under img dir?

Yes, definitely a good idea, will do!

[tdancheva]

@tdancheva What do you think about updating the dashboard screenshots under img dir?

Yes, definitely a good idea, will do!

I will put it in a separate PR, just in case, I want to close these as soon as possible.

[elasticmachine]

Package azure - 1.5.21 containing this change is available at https://epr.elastic.co/search?package=azure