Update ja.po for /yugipedia

[myyourcaramel]

Here's some updates! The original were nice guesses 🆒

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.72%. Comparing base (5b6ccf1) to head (73a5ed0).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #578       +/-   ##
===========================================
+ Coverage   38.96%   49.72%   +10.76%     
===========================================
  Files          11       37       +26     
  Lines        2138     5305     +3167     
  Branches        5      303      +298     
===========================================
+ Hits          833     2638     +1805     
- Misses       1305     2666     +1361     
- Partials        0        1        +1     

Flag	Coverage Δ
contract	?
unit	49.72% <ø> (?)

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[kevinlul]

Thank you!