docs: Add documentation page with information for each application metrics and/or current alerts

[orfeas-k]

Context

Add documentation page with information for each application metrics and/or current alerts:

• Link to upstream docs (if available)
• Otherwise, provide a command (curl) or a how-to access all available metrics through prometheus UI.

What needs to get done

Create the documentation page described.

Definition of Done

There is the documentation page described.

[syncronize-issues-to-jira[bot]]

Thank you for reporting us your feedback!

The internal ticket has been created: https://warthogs.atlassian.net/browse/KF-5592.

This message was autogenerated

[orfeas-k]

• Metrics page
• Alerts page