update user profile avatar's placeholder

lib/pages/personal/personal_page.dart

@@ -124,8 +124,7 @@ class _PersonalIndexState extends State<PersonalIndex>
                             tag: 'AVATAR',
                             child: ClipOval(
                               child: FadeInImage.assetNetwork(
-                                //TODO PLACEHOLDER
+                                placeholder: R.ASSETS_IMAGES_PLACEHOLDER_WEBP,
-                                placeholder: R.ASSETS_ICONS_PROPOSAL_PNG,
                                 image: API.image(
                                     userProvider?.userInfoModel?.imgUrl ?? ''),
                                 height: 106.w,

lib/pages/personal/user_profile_page.dart

@@ -98,7 +98,7 @@ class _UserProfilePageState extends State<UserProfilePage> {
               tag: 'AVATAR',
               child: ClipOval(
                 child: FadeInImage.assetNetwork(
-                  placeholder: R.ASSETS_ICONS_PROPOSAL_PNG,
+                  placeholder: R.ASSETS_IMAGES_PLACEHOLDER_WEBP,
                   image: API.image(userProvider.userInfoModel.imgUrl),
                   height: 56.w,
                   width: 56.w,