* fix(i18n): survive a malformed locale cookie
getLocaleFromCookie decoded the raw cookie value without a guard, so a
malformed percent-encoding threw URIError during locale bootstrap and in
formatTimeAgo. It also split the cookie on every "=", truncating values
that contain one. Decode defensively and split on the first "=" only.
* fix(i18n): normalize the cookie locale in formatTimeAgo
The second caller of getLocaleFromCookie cast the raw value to Locale, so a
malformed-but-known-prefixed cookie skipped normalization. Normalize it like
useI18n does, and cover the malformed and valid cookie paths.
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Co-authored-by: 一片一片 <192845873+gdut4140@users.noreply.github.com>
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