Scanner: Handle edge case for chapters parsing

[Arthi-chaud]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 17.06%. Comparing base (630587e) to head (67d121f).

Files	Patch %	Lines
scanner/pkg/parser/media_info.go	0.00%	14 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #70      +/-   ##
==========================================
- Coverage   25.84%   17.06%   -8.78%     
==========================================
  Files          16       13       -3     
  Lines         801      668     -133     
  Branches        7        0       -7     
==========================================
- Hits          207      114      -93     
+ Misses        587      554      -33     
+ Partials        7        0       -7     

Flag	Coverage Δ
matcher	?
scanner	17.06% <0.00%> (-0.26%)	⬇️

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