Replace romaji period characters with Japanese style zenkaku period characters

Found 4 of the Japanese translations inconsistently used romaji style periods. Replaced with zenkaku periods.
merged branch wwotoole/patch-1 (PR #8400)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #8400).

Discussion
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Replace romaji period characters with Japanese style zenkaku period char...

...acters

Found 4 of the Japanese translations inconsistently used romaji style periods. Replaced with zenkaku periods.

Commits
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1b3b1a7 Replace romaji period characters with Japanese style zenkaku period characters