feat: add back-to-top component to multiple pages and import scroll mixin

add to-top component to card.vue, card_buy.vue, diy.vue and member index.vue, import scroll mixin for diy and member index pages to support scroll to top functionality

pages_tool/index/diy.vue

@@ -51,6 +51,7 @@
 			<!-- 小程序隐私协议 -->
 			<privacy-popup ref="privacyPopup"></privacy-popup>
 			<!-- #endif -->
+			<to-top v-if="showTop" @toTop="scrollToTopNative()"></to-top>
 		</view>
 	</view>
 </template>
@@ -58,10 +59,11 @@
 <script>
 
 import diyJs from '@/common/js/diy.js';
+import scroll from '@/common/js/scroll-view.js';
 import microPageJs from './public/js/diy.js';
 
 export default {
-	mixins: [diyJs, microPageJs]
+	mixins: [diyJs, scroll, microPageJs]
 };
 </script>