!5764 修改部分xts失败用例

Merge pull request !5764 from 张馨月/OpenHarmony-3.2-Beta3

arkui/ace_standard/src/main/config.json

@@ -149,7 +149,7 @@
           "pages/stepper/style/index",
           "pages/stepperItem/router/index",
           "pages/stepperItem/prop/index",
-          "pages/stepperItem/style/index",
+          "pages/stepperItem/style/style",
           "pages/swiper/router/index",
           "pages/swiper/prop/index",
           "pages/swiper/style/index",

arkui/ace_standard/src/main/js/default/pages/stepperItem/style/style.css

@@ -428,7 +428,7 @@
     height: 20px;
     font-size: 15px;
     margin-bottom: 2px;
-    background-color:#0FFFFFF;
+    background-color:violet;
     width: 100%;
     margin-left: 10px;
     margin-right: 10px;