chore(hl): refactor default highlights

[linrongbin16]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 116 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.68%. Comparing base (7d905f0) to head (5d632ff).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
rsvim_core/src/hl.rs	0.00%	116 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #928      +/-   ##
==========================================
- Coverage   82.01%   81.68%   -0.34%     
==========================================
  Files          98       98              
  Lines       12474    12525      +51     
==========================================
  Hits        10231    10231              
- Misses       2243     2294      +51     

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