refactor: fetch policy network only

lib/models/auth.dart

@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'dart:async';
 import 'package:ferry/ferry.dart';
-import 'package:git_touch/utils/nil_store.dart';
 // import 'package:in_app_review/in_app_review.dart';
 import 'package:universal_io/io.dart';
 import 'package:git_touch/models/bitbucket.dart';
@@ -703,7 +702,10 @@ class AuthModel with ChangeNotifier {
           _apiPrefix + '/graphql',
           defaultHeaders: {HttpHeaders.authorizationHeader: 'token $token'},
         ),
-        cache: Cache(store: NilStore()),
+        // https://ferrygraphql.com/docs/fetch-policies#default-fetchpolicies
+        defaultFetchPolicies: {
+          OperationType.query: FetchPolicy.NetworkOnly,
+        },
       );
     }
 

lib/utils/nil_store.dart

@@ -1,33 +0,0 @@
-import 'dart:async';
-import 'package:ferry_store/ferry_store.dart';
-
-// This is a cache store to disable cache
-class NilStore extends Store {
-  @override
-  void clear() {}
-
-  @override
-  void delete(String dataId) {}
-
-  @override
-  void deleteAll(Iterable<String> dataIds) {}
-
-  @override
-  Map<String, dynamic> get(String dataId) {
-    return {};
-  }
-
-  @override
-  Iterable<String> get keys => [];
-
-  @override
-  void put(String dataId, Map<String, dynamic>? value) {}
-
-  @override
-  void putAll(Map<String, Map<String, dynamic>?> data) {}
-
-  @override
-  Stream<Map<String, dynamic>> watch(String dataId) {
-    return Stream.empty();
-  }
-}