Refactor code structure for improved readability and maintainability (#2884)

Co-authored-by: Paul V Craven <paul.craven@optimizley.com>

Author: pvcraven

CHANGELOG.md

@@ -3,6 +3,11 @@
 You can grab pre-release versions from PyPi. See the available versions from the
 Arcade [PyPi Release History](https://pypi.org/project/arcade/#history) page.
 
+## Unreleased
+
+### Misc Changes
+- Updated the optional `pymunk` extra to 7.3.0 (from 7.2.0). Packaging-only release (free-threaded CPython and pyodide wheels, improved type hints) with no breaking changes or deprecations.
+
 ## 4.0.0.dev7
 
 ### Breaking Changes

pyproject.toml

@@ -36,7 +36,7 @@ Book = "https://learn.arcade.academy"
 
 [dependency-groups]
 extras = [
-    "pymunk~=7.2.0"
+    "pymunk~=7.3.0"
 ]
 # Doc building (requires Python >=3.12 due to Sphinx 9.x)
 docs = [