Fixed analysis warnings in zefyr package

packages/notus/pubspec.yaml

 
 dependencies:
   collection: ^1.14.6
-  meta: ^1.1.6
+  meta: ^1.1.0
   quill_delta: ^1.0.0-dev
   quiver_hashcode: ^1.0.0
 

packages/zefyr/lib/zefyr.dart

 export 'src/widgets/theme.dart';
 export 'src/widgets/toolbar.dart';
 //export 'src/widgets/render_context.dart';
-

packages/zefyr/pubspec.yaml

 name: zefyr
-description: Rich text editor for Flutter.
+description: Clean, minimalistic and collaboration-ready rich text editor for Flutter.
 version: 0.1.1
 author: Anatoly Pulyaevskiy <anatoly.pulyaevskiy@gmail.com>
-homepage: https://github.com/pulyaevskiy/zefyr
+homepage: https://github.com/memspace/zefyr
 
 environment:
-  sdk: '>=2.0.0-dev.58.0 <2.0.0'
+  sdk: '>=2.0.0-dev.58.0 <3.0.0'
 
 dependencies:
   flutter: