fix: support ANSI language with multiple themes

[dan-lee]

• <- Keep this line and put an x between the brackts.

Description

Fixes ansi language throwing "Language ansi not found" when using multiple themes.

Let me know if this is the right fix/direction.

Linked Issues

fixes #1257

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.56%. Comparing base (69bec64) to head (50d8448).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1259      +/-   ##
==========================================
+ Coverage   89.53%   89.56%   +0.03%     
==========================================
  Files          79       79              
  Lines        3479     3480       +1     
  Branches     1009     1008       -1     
==========================================
+ Hits         3115     3117       +2     
+ Misses        328      327       -1     
  Partials       36       36              

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