Update l10n

Summary:
Refresh localisation:

• Add more languages
• Switch to UTF-8 string representation

Initially submitted by @Tpt
at https://github.com/dereckson/Daeghrefn-Wikidata/pull/4

Test Plan:
Ensure JSON is valid

Feed modified files to jsonlint, ensure it's parsable as JSON:

git diff-tree --no-commit-id --name-only -r HEAD | gxargs -L 1 jsonlint

Test run

https://www.wikidata.org/wiki/Q40199389

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D1018