MM-54556: Integrate wip i18n languages (#24308)

* merge languages from https://github.com/mattermost/i18n-wip

* allow only supported server locales

* Revert "merge languages from https://github.com/mattermost/i18n-wip"

This reverts commit 36de545102faffe1e8ba943decdab04bc4f5a55c. We'll let
weblate populate these on start instead.

* copy fileutils to public/utils

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/config/utils.go

@@ -116,14 +116,14 @@ func FixInvalidLocales(cfg *model.Config) bool {
 
 	locales := i18n.GetSupportedLocales()
 	if _, ok := locales[*cfg.LocalizationSettings.DefaultServerLocale]; !ok {
+		mlog.Warn("DefaultServerLocale must be one of the supported locales. Setting DefaultServerLocale to en as default value.", mlog.String("locale", *cfg.LocalizationSettings.DefaultServerLocale))
 		*cfg.LocalizationSettings.DefaultServerLocale = model.DefaultLocale
-		mlog.Warn("DefaultServerLocale must be one of the supported locales. Setting DefaultServerLocale to en as default value.")
 		changed = true
 	}
 
 	if _, ok := locales[*cfg.LocalizationSettings.DefaultClientLocale]; !ok {
+		mlog.Warn("DefaultClientLocale must be one of the supported locales. Setting DefaultClientLocale to en as default value.", mlog.String("locale", *cfg.LocalizationSettings.DefaultClientLocale))
 		*cfg.LocalizationSettings.DefaultClientLocale = model.DefaultLocale
-		mlog.Warn("DefaultClientLocale must be one of the supported locales. Setting DefaultClientLocale to en as default value.")
 		changed = true
 	}