feat(lib): sort scenes alphabetically when listing them

[msaadsbr]

Fixes Issue

Closes #571

Description

This pull request addresses the issue where the scene list for the manim-slides convert command was unsorted.

As suggested in the issue discussion, this PR modifies the _list_scenes function in manim_slides/present/__init__.py to return an alphabetically sorted list by changing return scenes to return sorted(scenes).

Check List

Check all the applicable boxes:

• I understand that my contributions needs to pass the checks;
• If I created new functions / methods, I documented them and add type hints;
• If I modified already existing code, I updated the documentation accordingly;
• The title of my pull request is a short description of the requested changes.

Screenshots

Not applicable for this change.

Note to reviewers

This is a straightforward, one-line fix as suggested in the issue. Thanks!

[jeertmans]

Thanks for your contribution @msaadsbr! Could you add an entry to the changelog? That would be great :)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.12%. Comparing base (40ed77b) to head (bc1e2d7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #573   +/-   ##
=======================================
  Coverage   80.12%   80.12%           
=======================================
  Files          23       23           
  Lines        2038     2038           
=======================================
  Hits         1633     1633           
  Misses        405      405           

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[msaadsbr]

Hey @jeertmans, I add an entry to Changelog!

[jeertmans]

Thank you @msaadsbr!