Add test to build flutter web

Author: dshukertjr

.github/workflows/supabase_flutter.yml

@@ -76,3 +76,8 @@ jobs:
         run: |
           flutter pub downgrade app_links
           flutter test --concurrency=1
+
+      - name: Verify if Flutter web build is successful
+        run: |
+          cd packages/supabase_flutter/example
+          flutter build web

packages/supabase_flutter/example/pubspec.yaml

@@ -21,3 +21,21 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+melos_managed_dependency_overrides: functions_client,gotrue,postgrest,realtime_client,storage_client,yet_another_json_isolate
+dependency_overrides:
+  functions_client:
+    path: ../../functions_client
+  gotrue:
+    path: ../../gotrue
+  postgrest:
+    path: ../../postgrest
+  realtime_client:
+    path: ../../realtime_client
+  storage_client:
+    path: ../../storage_client
+  supabase:
+    path: ../../supabase
+  yet_another_json_isolate:
+    path: ../../yet_another_json_isolate
+  supabase_flutter:
+    path: ../

packages/yet_another_json_isolate/lib/src/_isolates_web.dart

@@ -10,7 +10,7 @@ class YAJsonIsolate {
     return jsonDecode(json);
   }
 
-  Future<String> encode(Map json) async {
+  Future<String> encode(Object? json) async {
     await null;
     return jsonEncode(json);
   }