i18n(ja): Added Japanese pages

[e-jigsaw]

Description

Added Japanese locale file.

Related Issues

https://github.com/nodejs/nodejs.dev/issues/2612#issuecomment-1242806267

Check List

• [x] I have read the Contributing Guidelines and made commit messages that follow the guideline.
• [x] I have run npm run lint:js -- --fix and/or npm run lint:md -- --fix for my JavaScript and/or Markdown changes.
  • This is important as most of the cases your code changes might not be correctly linted
• [x] I have run npm run test to check if all tests are passing, and/or npm run test -- -u to update snapshots if I created and/or updated React Components.
• [x] I have checked that the build works locally and that npm run build work fine.
• [x] I've covered new added functionality with unit tests if necessary.

[e-jigsaw]

@nodejs/nodejs-ja review please!

[codecov-commenter]

Codecov Report

Base: 66.02% // Head: 66.95% // Increases project coverage by +0.92% :tada:

Coverage data is based on head (4604f73) compared to base (fd57b87). Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2764      +/-   ##
==========================================
+ Coverage   66.02%   66.95%   +0.92%     
==========================================
  Files         118      143      +25     
  Lines        1351     1622     +271     
  Branches      342      384      +42     
==========================================
+ Hits          892     1086     +194     
- Misses        422      493      +71     
- Partials       37       43       +6     

Impacted Files	Coverage Δ
src/templates/blog.tsx	0.00% <0.00%> (-100.00%)	:arrow_down:
util-node/getNodeReleasesData.js	91.30% <0.00%> (-6.32%)	:arrow_down:
src/__fixtures__/page.tsx	94.11% <0.00%> (-5.89%)	:arrow_down:
src/pages/index.tsx	100.00% <0.00%> (ø)
src/templates/api.tsx	0.00% <0.00%> (ø)
src/templates/learn.tsx	100.00% <0.00%> (ø)
util-node/createSlug.js	100.00% <0.00%> (ø)
util-node/getNvmData.js	100.00% <0.00%> (ø)
src/hooks/useOnScreen.tsx	100.00% <0.00%> (ø)
src/pages/about/index.tsx	100.00% <0.00%> (ø)
... and 180 more

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[ovflowd]

@e-jigsaw I think we can proceed with this PR, as you seem to be the only active JP translator.

[github-actions[bot]]

Please find a preview at: https://staging.nodejs.dev/2764/

[okuryu]

今さらこれに気づきました。ちょっと確認させてください。

[ovflowd]

@e-jigsaw, the CI seems to be failing. Could you run yarn jest -u?

[ovflowd]

Sorry, I accidentally clicked to close the PR 🤦

[e-jigsaw]

@ovflowd fixed :)

[ovflowd]

Hey @e-jigsaw I noticed that the ja.json file is outdated (based on the translation keys from en.json)

Could you compare the missing entries from en.json and remove the deprecated ones from ja.json?

Thank you so much! (After this I think we will only need one last review, and we'll be ready to merge)

[e-jigsaw]

@ovflowd Hi updated json

[e-jigsaw]

@AugustinMauroy Thanks for reviewing! I referred a lot your work.

@ovflowd I think this is ready to merge. Is there something I'm missing?

[ovflowd]

@ovflowd I think this is ready to merge. Is there something I'm missing?

Let's just have a final pass/review from @nodejs/nodejs-ja and then I think we're good to proceed!

[e-jigsaw]

@okuryu @watilde もう一度レビューいただけるとたすかります....!! 🙏 🙏

[e-jigsaw]

@ovflowd good to go!