fix(lang): updated Japanese translations

[wseymour15]

Description

Cherry pick for updated Japanese translations. See #8190

Specific Changes proposed

• A few updated translations
• Update translations needed file

Requirements Checklist

• Feature implemented / Bug fixed
• If necessary, more likely in a feature request than a bug fix
  • Change has been verified in an actual browser (Chrome, Firefox, IE)
  • Unit Tests updated or fixed
  • Docs/guides updated
  • Example created (starter template on JSBin)
• Reviewed by Two Core Contributors

[codecov]

Codecov Report

Merging #8194 (88761bb) into 7.x (7c3d3f4) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              7.x    #8194      +/-   ##
==========================================
+ Coverage   80.99%   81.00%   +0.01%     
==========================================
  Files         116      116              
  Lines        7472     7476       +4     
  Branches     1817     1820       +3     
==========================================
+ Hits         6052     6056       +4     
  Misses       1420     1420              

Impacted Files	Coverage Δ
src/js/player.js	88.40% <100.00%> (+0.02%)	⬆️

... and 2 files with indirect coverage changes

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