Update CHANGELOG.md (#462)

Author: fischerscode

packages/dart/CHANGELOG.md

@@ -1,5 +1,11 @@
 ## 1.0.28
-Spit this package: All flutter parts are now in [this](https://pub.dev/packages/parse_server_sdk_flutter) package!
+- Added full web support
+- split this package in a dart and a flutter one
+  - [flutter package](https://pub.dev/packages/parse_server_sdk_flutter)
+  - [dart package](https://pub.dev/packages/parse_server_sdk)
+- Moved ParseHTTPClient to Dio [#459](https://github.com/parse-community/Parse-SDK-Flutter/pull/459)
+- Bug fixes
+- general improvements
 
 ## 1.0.27
 User login / signUp / loginAnonymous delete SessionId stored in device before calling server