FEAT: NEW WORKFLOW ENGINE (#3160)

Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: Yeuoly <admin@srmxy.cn>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: StyleZhang <jasonapring2015@outlook.com>
Co-authored-by: jyong <jyong@dify.ai>
Co-authored-by: nite-knite <nkCoding@gmail.com>
Co-authored-by: jyong <718720800@qq.com>

web/app/components/share/chatbot/index.tsx

@@ -729,7 +729,7 @@ const Main: FC<IMainProps> = ({
         title={siteInfo.title}
         icon=''
         customerIcon={difyIcon}
-        icon_background={siteInfo.icon_background}
+        icon_background={siteInfo.icon_background || ''}
         isEmbedScene={true}
         isMobile={isMobile}
         onCreateNewChat={() => handleConversationIdChange('-1')}