## Description
Updating fixtures to replace executeOnLoad with reactiveActions
Fixes [#39833](https://github.com/appsmithorg/appsmith/issues/39833)
## Automation
/ok-to-test tags=""
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!CAUTION]
> If you modify the content in this section, you are likely to disrupt
the CI result for your PR.
<!-- end of auto-generated comment: Cypress test results -->
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No
Added test for incompatible json file which validates error message.
/ok-to-test tags="@tag.All"
<!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/11842679143>
> Commit: e25dece2db1249fca257f089162faa5cdfaa85ae
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=11842679143&attempt=2"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.All`
> Spec:
> <hr>Fri, 15 Nov 2024 06:05:44 UTC
<!-- end of auto-generated comment: Cypress test results -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Introduced a new test suite to validate the partial import
functionality, ensuring compatibility checks for JSON files.
- Added a structured JSON file representing an application's
configuration, including metadata, pages, and actions.
- **Bug Fixes**
- Implemented error message validation for importing incompatible JSON
files.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: “NandanAnantharamu” <“nandan@thinkify.io”>
