[Incontext insights] clean up components and usability

[kavilla]

Description

Addresses some of the comments on the original PR for this component, with changes from user studies.

Added a UI Settings which can be modified in Advanced Settings and increase the timeout as one of the issues is that the original was too fast to see the initial state on load. Then I felt it was really long so made it configurable for users to decide whats best and for us to fine tune it with more insight.

Does not resolve every issue but I still plan on making it so a custom attribute that gets stylized instead of making plugins wrap components. But higher priorities have made me delay these changes. So opening to not let it get too stale.

Issues Partially Resolved

https://github.com/opensearch-project/dashboards-assistant/issues/143

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass, including unit test, integration test.
• [ ] New functionality has user manual doc added.
• [ ] Commits are signed per the DCO using --signoff.

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