fix(h5): checkbox添加disabled样式

src/core/view/components/checkbox/index.vue

@@ -2,13 +2,13 @@
   <uni-checkbox
     :disabled="disabled"
     v-on="$listeners"
-    @click="_onClick"
+    @click="_onClick"
   >
     <div class="uni-checkbox-wrapper">
       <div
-        :class="[checkboxChecked ? 'uni-checkbox-input-checked' : '']"
+        :class="{ 'uni-checkbox-input-checked' : checkboxChecked, 'uni-checkbox-input-disabled' : disabled }"
         :style="{color:color}"
-        class="uni-checkbox-input"
+        class="uni-checkbox-input"
       />
       <slot />
     </div>