## Description
This PR:
- Adds analytic events for start with data onboarding flow, List of
events and their details can be found in this
[doc](https://www.notion.so/appsmith/Analytic-Events-c326270138c046f4b29328bc18b89b2d)
- There was an issue in DATASOURCE_SCHEMA_FETCH event, it was throwing
misleading information when the datasource structure fetch API failed,
that issue has been fixed as well
#### PR fixes following issue(s)
Fixes#29435
#### Media
> A video or a GIF is preferred. when using Loom, don’t embed because it
looks like it’s a GIF. instead, just link to the video
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#### Type of change
- Chore (housekeeping or task changes that don't impact user perception)
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## Testing
>
#### How Has This Been Tested?
> Please describe the tests that you ran to verify your changes. Also
list any relevant details for your test configuration.
> Delete anything that is not relevant
- [x] Manual
- [ ] JUnit
- [ ] Jest
- [ ] Cypress
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#### Test Plan
> Add Testsmith test cases links that relate to this PR
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#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
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## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [x] PR is being merged under a feature flag
#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#areas-of-interest-)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Enhanced analytics tracking for user interactions during the
onboarding process, including skipping steps.
- **Refactor**
- Improved internal logic for fetching and refreshing datasource
structures to enhance error handling and success tracking.
- **Documentation**
- Updated type definitions to reflect new analytics events related to
the onboarding flow.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Co-authored-by: “sneha122” <“sneha@appsmith.com”>
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