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#### Description of changes #### Issue #, if available #### Description of how you validated changes #### Checklist - [ ] Have read the [Pull Request Guidelines](https://github.com/aws-amplify/amplify-ui/blob/main/CONTRIBUTING.md) - [ ]...
#### Description of changes - Previously we were not awaiting the image buffer before allowing sending an image - Fix to await the file buffer - Update default send button...
#### Description of changes #### Issue #, if available #### Description of how you validated changes #### Checklist - [ ] Have read the [Pull Request Guidelines](https://github.com/aws-amplify/amplify-ui/blob/main/CONTRIBUTING.md) - [ ]...