fix: Sort scene list alphabetically in 'convert' command

Author: msaadsbr

CHANGELOG.md

@@ -547,6 +547,10 @@ In an effort to better document changes, this CHANGELOG document is now created.
 (v5-fixed)=
 ### Fixed
 
+- Sort the scene list alphabetically in the `manim convert` command.
+  This fix was contributed by
+  [@msaadsbr](https://github.com/msaadsbr)
+  [#571](https://github.com/jeertmans/manim-slides/pull/571)
 - Patched enums in `manim_slides/convert.py` to correctly call `str`'s
   `__str__` method, and not the `Enum` one.
   This bug was discovered by

manim_slides/present/__init__.py

@@ -39,7 +39,7 @@ def _list_scenes(folder: Path) -> list[str]:
 
     logger.debug(f"Found {len(scenes)} valid scene configuration files in `{folder}`.")
 
-    return scenes
+    return sorted(scenes)
 
 
 def prompt_for_scenes(folder: Path) -> list[str]: