Add setuptools configuration for package data and entry points

pyproject.toml

@@ -15,3 +15,10 @@ dependencies = [
 
 [project.entry-points."reachy_mini_apps"]
 reachy_mini_app_example = "reachy_mini_app_example.main:ExampleApp"
+
+
+[tool.setuptools]
+packages = ["reachy_mini_app_example"]
+
+[tool.setuptools.package-data]
+reachy_mini_app_example = ["*.html", "*.css", "*.js"]