The player profile chart uses manual translation keys like chartToday, chartDaysAgo, and chartMonthsAgoShort for its date labels and tooltips
locales with missing chart date strings, such as zh-CN, fall back to English even though other dates on the site are localized through native Intl formatting
We should be using Intl.RelativeTimeFormat like the rest of the timestamp localization work.

The player profile chart uses manual translation keys like chartToday, chartDaysAgo, and chartMonthsAgoShort for its date labels and tooltips
locales with missing chart date strings, such as zh-CN, fall back to English even though other dates on the site are localized through native Intl formatting
We should be using Intl.RelativeTimeFormat like the rest of the timestamp localization work.