[Improvement] eslint: use vue-libs (#1237)

packages/number-keyboard/demo/index.vue

@@ -60,10 +60,10 @@ export default {
 
   methods: {
     onInput(value) {
-      Toast('Input: ' + value);
+      this.$toast('Input: ' + value);
     },
     onDelete() {
-      Toast('Delete');
+      this.$toast('Delete');
     }
   }
 };

packages/number-keyboard/index.vue

@@ -19,7 +19,7 @@
       </div>
       <div :class="b('body')">
         <key
-          v-for="(key, index) in keys"
+          v-for="key in keys"
           :key="key.text"
           :text="key.text"
           :type="key.type"