chore: fix wds select widget bugs + refactor (#38304)

Fixes #38197 

/ok-to-test tags="@tag.Anvil"

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary by CodeRabbit

- **New Features**
- Enhanced styling for select input components, improving visual
consistency.
- Introduced new validation functions for widget properties, ensuring
better data integrity.
- Added properties for improved configuration of select widgets,
including dynamic data binding.
- New utility functions for handling options in select widgets,
enhancing functionality.
- Introduced a constant for sample data to facilitate testing and
development.

- **Bug Fixes**
- Resolved issues with widget rendering and responsiveness to property
changes.

- **Refactor**
- Streamlined widget implementation by leveraging inherited
functionalities and simplifying methods.
- Updated methods to improve handling of derived properties and options.
- Removed obsolete configuration files and validation functions to clean
up the codebase.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

<!-- This is an auto-generated comment: Cypress test results  -->
> [!TIP]
> 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/12480977859>
> Commit: d669e05
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=12480977859&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Anvil`
> Spec:
> <hr>Tue, 24 Dec 2024 11:43:59 UTC
<!-- end of auto-generated comment: Cypress test results  -->

app/client/packages/design-system/widgets/src/components/Select/src/styles.module.css

@@ -23,3 +23,7 @@ button.selectTriggerButton {
   align-items: center;
   flex: 1;
 }
+
+.selectTriggerButton [data-select-text][data-placeholder] {
+  color: var(--color-fg-neutral-subtle);
+}