remove unused image

update image usage

lib/pages/home/widget/goods_hot_list_page.dart

@@ -78,7 +78,7 @@ class _GoodsHotListPageState extends BaseStoreState<GoodsHotListPage> {
         child: Stack(
           children: <Widget>[
             Image.asset(
-              'assets/goods_hot_list_title_bg.png',
+              R.ASSETS_GOODS_HOT_LIST_TITLE_BG_PNG_WEBP,
               fit: BoxFit.fill,
             ),
             Navigator.canPop(context)

lib/pages/user/about_us_page.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:recook/base/base_store_state.dart';
+import 'package:recook/constants/header.dart';
 import 'package:recook/constants/styles.dart';
 import 'package:recook/widgets/custom_app_bar.dart';
 
@@ -12,7 +13,6 @@ class AboutUsPage extends StatefulWidget {
 }
 
 class _AboutUsPageState extends BaseStoreState<AboutUsPage> {
-
   @override
   Widget buildContext(BuildContext context, {store}) {
     return Scaffold(
@@ -26,10 +26,13 @@ class _AboutUsPageState extends BaseStoreState<AboutUsPage> {
         children: <Widget>[
           Container(
             // padding: EdgeInsets.symmetric(vertical: 10),
-            child: Image.asset("assets/recook_about_us.jpg", fit: BoxFit.fill,),
+            child: Image.asset(
+              R.ASSETS_RECOOK_ABOUT_US_JPG_WEBP,
+              fit: BoxFit.fill,
+            ),
           )
         ],
       ),
     );
   }
-}
+}

lib/widgets/bussiness_cooperation_page.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:recook/constants/header.dart';
 import 'package:recook/constants/styles.dart';
 import 'package:recook/widgets/custom_app_bar.dart';
 
@@ -15,7 +16,7 @@ class BussinessCooperationPage extends StatelessWidget {
       body: ListView(
         children: [
           Image.asset(
-            'assets/businessCooperation.png',
+            R.ASSETS_BUSINESSCOOPERATION_PNG_WEBP,
             fit: BoxFit.fill,
           ),
         ],