feat(cli): add skipInstall option

src/lazyload/demo/index.vue

@@ -1,25 +1,16 @@
 <template>
   <demo-section>
     <demo-block :title="$t('basicUsage')">
-      <img
-        v-for="img in imageList"
-        v-lazy="img"
-      >
+      <img v-for="img in imageList" v-lazy="img">
     </demo-block>
 
     <demo-block :title="$t('title2')">
-      <div
-        v-for="img in backgroundImageList"
-        v-lazy:background-image="img"
-      />
+      <div v-for="img in backgroundImageList" v-lazy:background-image="img" />
     </demo-block>
 
     <demo-block :title="$t('title3')">
       <lazy-component>
-        <img
-          v-for="img in componentImageList"
-          v-lazy="img"
-        >
+        <img v-for="img in componentImageList" v-lazy="img">
       </lazy-component>
     </demo-block>
   </demo-section>