fixed llamascope sae names and loader

[curt-tigges]

Description

Fixed minor bug affecting CI and also LlamaScope name casing.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have not rewritten tests relating to key interfaces which would affect backward compatibility

You have tested formatting, typing and unit tests (acceptance tests not currently in use)

• I have run make check-ci to check format and linting. (you can run make format to format code if needed.)

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 67.09%. Comparing base (4a08d0d) to head (8f6bcb0).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
sae_lens/toolkit/pretrained_sae_loaders.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #371      +/-   ##
==========================================
- Coverage   67.33%   67.09%   -0.25%     
==========================================
  Files          25       25              
  Lines        3496     3519      +23     
  Branches      455      457       +2     
==========================================
+ Hits         2354     2361       +7     
- Misses       1012     1028      +16     
  Partials      130      130              

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