fix: Colorpicker empty color value regression (#36157)

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

This PR fixes a regression that was added by #36119

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> <hr>Fri, 06 Sep 2024 11:05:42 UTC
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

- **Bug Fixes**
- Improved color input handling to ensure that empty values are
processed correctly, enhancing color validation functionality.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Pawan Kumar <[email protected]>

app/client/src/components/propertyControls/ColorPickerComponentV2.tsx

@@ -546,9 +546,7 @@ const ColorPickerComponent = React.forwardRef(
 
     const handleChangeColor = useCallback(
       (event: React.ChangeEvent<HTMLInputElement>) => {
-        const value = event.target.value;
-
-        if (!value) return;
+        const value = event.target.value || "";
 
         if (isValidColor(value)) {
           debouncedOnChange(value, true);