message: Add change log entry for configuration fix
  This updates the CHANGELOG.md to include information
  about the changes which have been made in
diff: @@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  - Fixed erroneous results when using the `indexed_colors` config option
  - Fixed rendering cursors other than rectangular with the RustType backend
  - Selection memory leak and glitches in the alternate screen buffer
  +- Invalid default configuration on macOS and Linux
  ## Version 0.2.1
  