AC-1428: Unable to locate Color Swatch in Color Picker in PageBuilder

Change color code for no-color swatch

Author: kieuphan2406

app/code/Magento/PageBuilder/Test/Mftf/Data/BackgroundFormData.xml

@@ -14,7 +14,7 @@
         <data key="value"/>
         <data key="rgba">rgba(0, 0, 0, 0)</data>
         <data key="rgb">rgba(0, 0, 0, 0)</data>
-        <data key="colorSwatchColor">rgba(0, 0, 0, 0)</data>
+        <data key="colorSwatchColor">transparent</data>
         <data key="colorWheelDefault">rgb(255, 0, 0)</data>
         <data key="placeholderText">No Color</data>
     </entity>