feat: 引入uView Plus组件库，新增部分静态页面

uni_modules/uview-plus/libs/config/zIndex.js

@@ -0,0 +1,20 @@
+// uniapp在H5中各API的z-index值如下：
+/**
+ * actionsheet: 999
+ * modal: 999
+ * navigate: 998
+ * tabbar: 998
+ * toast: 999
+ */
+
+export default {
+    toast: 10090,
+    noNetwork: 10080,
+    // popup包含popup，actionsheet，keyboard，picker的值
+    popup: 10075,
+    mask: 10070,
+    navbar: 980,
+    topTips: 975,
+    sticky: 970,
+    indexListSticky: 965
+}