[auth] Lint fixes

auth/lib/ui/sort_option_menu.dart

@@ -1,7 +1,6 @@
 import 'package:ente_auth/l10n/l10n.dart';
 import 'package:ente_auth/services/preference_service.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 
 class SortCodeMenuWidget extends StatelessWidget {
   final CodeSortKey currentKey;

auth/lib/ui/utils/icon_utils.dart

@@ -31,9 +31,11 @@ class IconUtils {
   }) {
     final providerTitle = _getProviderTitle(provider);
     final List<String> titlesList = [providerTitle];
-    titlesList.addAll(_titleSplitCharacters
-        .where((char) => providerTitle.contains(char))
-        .map((char) => providerTitle.split(char)[0]));
+    titlesList.addAll(
+      _titleSplitCharacters
+          .where((char) => providerTitle.contains(char))
+          .map((char) => providerTitle.split(char)[0]),
+    );
     for (final title in titlesList) {
       if (_customIcons.containsKey(title)) {
         return _getSVGIcon(