## Description
- This PR fixes below from Cypress suite to better developer experience
- Simplifies the AddDSL method
- Added AssertQueryTableResponse() & used
- SaveDataSource improved
- ReconnectDSbyName() created
- FirstTimeUserOnboarding_spec - 5th - Trail fix
#### Type of change
- Script fix (non-breaking change which fixes an issue)
## Testing
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#### How Has This Been Tested?
- [X] Cypress CI runs
## Checklist:
#### QA activity:
- [X] Added `Test Plan Approved` label after Cypress tests were reviewed
