❇️ Improvement over Vietnamese detection

[Ousret]

Latin characters with combining diacritical marks were miss detected/seen as mess (MD).

This file caught my attention.

• https://gitlab.freedesktop.org/uchardet/uchardet/-/blob/master/test/vi/windows-1258.txt

[codecov-commenter]

Codecov Report

Merging #126 (1984d31) into master (8b52c35) will decrease coverage by 0.06%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #126      +/-   ##
==========================================
- Coverage   90.25%   90.19%   -0.07%     
==========================================
  Files          11       11              
  Lines        1160     1163       +3     
==========================================
+ Hits         1047     1049       +2     
- Misses        113      114       +1     

Impacted Files	Coverage Δ
charset_normalizer/md.py	96.29% <66.66%> (-0.34%)	⬇️

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[Ousret]

Linked to #121