fix: remove unused imports

Author: d-loose

packages/app_center/lib/snapd/snap_action.dart

@@ -1,5 +1,4 @@
 import 'package:app_center/l10n.dart';
-import 'package:app_center/snapd/snap_data.dart';
 import 'package:app_center/snapd/snapd.dart';
 import 'package:flutter/widgets.dart';
 import 'package:yaru/icons.dart';

packages/app_center/test/manage_page_test.dart

@@ -1,7 +1,6 @@
 import 'package:app_center/manage/local_snap_providers.dart';
 import 'package:app_center/manage/manage.dart';
 import 'package:app_center/manage/manage_model.dart';
-import 'package:app_center/snapd/snap_data.dart';
 import 'package:app_center/snapd/snapd.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';