Fetch the translation bundle for locale from the API and cache it.
Merges the result into the active strings and persists it in localStorage
so a later launch can hydrate synchronously. Never throws — returns false
on any transport/parse failure, leaving existing strings intact.
Parameters
Optionallocale: string
Locale code (e.g. "es"); omit to use the server default
Fetch the translation bundle for
localefrom the API and cache it.Merges the result into the active strings and persists it in localStorage so a later launch can hydrate synchronously. Never throws — returns false on any transport/parse failure, leaving existing strings intact.