chore(release): publish packages

- thermion_dart@0.3.1
 - thermion_flutter@0.3.1
 - thermion_flutter_method_channel@0.3.1
 - thermion_flutter_web@0.3.1
 - thermion_flutter_platform_interface@0.3.1

thermion_dart/CHANGELOG.md

@@ -1,3 +1,9 @@
+## 0.3.1
+
+ - **REFACTOR**: remove covariant keyword from createInstance args.
+ - **FIX**: add flush() to skybox/IBL destroy methods to ensure that textre upload callbacks are completed to avoid stalling.
+ - **FIX**: duplicate setting for _grid.
+
 ## 0.3.0
 
  - n

thermion_dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_dart
 description: 3D rendering toolkit for Dart.
-version: 0.3.0
+version: 0.3.1
 homepage: https://thermion.dev
 repository: https://github.com/nmfisher/thermion