feat(cascader): radio group add ariaHidden

Author: zhangpaopao0609

src/cascader/cascader.wxml

@@ -19,7 +19,7 @@
             class="{{name}}__step"
             bind:tap="onStepClick"
             data-index="{{index}}"
-            aria-role="{{ item === defaultOptionLabel ? 'text' : 'button' }}"
+            aria-role="{{ item === defaultOptionLabel ? 'presentation' : 'button' }}"
             aria-label="{{ item === defaultOptionLabel ? item : '已选中,' + item  }}"
           >
             <view
@@ -62,6 +62,7 @@
               align="right"
               icon="line"
               borderless
+              aria-hidden="{{ stepIndex !== index}}"
             >
             </t-radio-group>
           </view>

src/radio-group/radio-group.wxml

@@ -1,6 +1,11 @@
 <wxs src="../common/utils.wxs" module="_" />
 
-<view style="{{_._style([style, customStyle])}}" class="{{classPrefix}} class {{prefix}}-class" aria-role="radiogroup">
+<view
+  style="{{_._style([style, customStyle])}}"
+  class="{{classPrefix}} class {{prefix}}-class"
+  aria-role="radiogroup"
+  aria-hidden="{{ ariaHidden === undefined ? false : !!ariaHidden }}"
+>
   <slot />
   <block wx:for="{{radioOptions}}" wx:key="value">
     <t-radio