HI @Nikhil-Nandagopal @rohan-arthur @btsgh ,
Fixes#15030
What's in this PR?
- Add Clear all option to the columns field by using allowClear prop to
select component in google sheets datasource.
- Add clearAllOptions function to apply the clear all options
functionality.
**Screenshots :**
Earlier :

Now :

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Added a clear selection functionality to the dropdown, allowing users
to easily clear all selected options.
- **Tests**
- Implemented new tests for the dropdown functionality to ensure proper
rendering and user interactions, including selecting and clearing
options.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->