Removed Observability route, keeping only workflow analytics, updated terminologies

[Saranya-jena]

Proposed changes

• Removed Observability route in FE
• Only Workflow Analytics will be present
• Updated terminologies

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Types of changes

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• New feature (non-breaking change which adds functionality)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices applies)

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Dependency

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Special notes for your reviewer:

[osier]

Hi, @Saranya-jena, just wondering why this wonderful function is removed suddenly? I see no explanation in the commit log, could you please explain a bit, thanks.

[Saranya-jena]

Hi, @osier we found that more users are leveraging our metrics within their own observability tools and not being limited in their visualization of the chaos impact. That's why we decided to do away with our monitoring dashboard.