Fix: Add build-system configuration to include resources in package

Co-authored-by: mingrammer <6178510+mingrammer@users.noreply.github.com>

.gitignore

@@ -29,3 +29,5 @@ website/package-lock.json
 
 # Ignore .swp files
 .swp
+*.whl
+dist/

pyproject.toml

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
 [project]
 name = "diagrams"
 version = "0.25.0"
@@ -26,8 +30,8 @@ dev = [
     "black~=24.4",
 ]
 
-[tool.hatch.build.targets.sdist]
-include = ["resources/**/*"]
+[tool.hatch.build]
+only-include = ["diagrams", "resources"]
 
 [tool.poetry.scripts]
 diagrams="diagrams.cli:main"
@@ -46,8 +50,5 @@ isort = "^6.0"
 black = "^24.4"
 pre-commit = "^4.3.0"
 
-[tool.hatch.build.targets.wheel]
-include = ["resources/**/*"]
-
 [tool.black]
 line-length=120