chore: update editor bg image

Author: kevinkim-ogp

packages/frontend/public/pipebg.svg

@@ -162,7 +162,14 @@ export default function Editor(props: EditorProps): React.ReactElement {
   }
 
   return (
-    <Flex w="full" justifyContent="center" overflowX="hidden">
+    <Flex
+      w="full"
+      justifyContent="center"
+      overflowX="hidden"
+      backgroundImage="/pipebg.svg"
+      backgroundRepeat="repeat"
+      backgroundSize="auto"
+    >
       <StepExecutionsToIncludeProvider value={stepExecutionsToInclude}>
         <Flex
           {...editorStyles.container}

packages/frontend/src/components/Editor/index.tsx

@@ -4,6 +4,7 @@ export const flowStepGroupStyles = {
   container: {
     flexDir: 'column' as FlexProps['flexDir'],
     alignItems: 'center',
+    background: 'white',
     borderWidth: '1px',
     borderColor: 'base.divider.medium',
     borderRadius: 'lg',