feat: extend asset copying to include data directory

Expanded the asset copying functionality to also handle the 'data' directory in addition to the 'assets' folder. This ensures that both static assets and data files are included in the output directory, streamlining the build process and ensuring all necessary resources are available in the generated static site.

main.py

@@ -129,11 +129,12 @@ def generate_static_site(development_mode=False):
         f.write(response)
 
     # Copy static assets
-    assets_src = pathlib.Path("assets")
-    assets_dst = output_dir / "assets"
-    if assets_dst.exists():
-        shutil.rmtree(assets_dst)
-    shutil.copytree(assets_src, assets_dst)
+    for folder in ["assets", "data"]:
+        src = pathlib.Path(folder)
+        dst = output_dir / folder
+        if dst.exists():
+            shutil.rmtree(dst)
+        shutil.copytree(src, dst)
 
     print("Static site generated successfully.")