Make i18n language identifiers comply with IETF BCP 47

CHANGELOG.md

@@ -70,6 +70,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - All `/build_area_*` commands have been renamed to `/area_*`, and you will have to pass an additional area type
 - Collision damage can now be applied in horizontal axes, in addition to the vertical axis
 - Items will vanish after 5 minutes to minimise performance problems
+- The language identifiers used by the i18n translation system have been converted to IETF BCP 47 (RFC 5646) language tags.
 
 ### Removed
 

assets/voxygen/i18n/ar-SA/_manifest.ron

@@ -3,8 +3,8 @@
 /// Localization for Arabic (Saudi locale)
 (
     metadata: (
-        language_name: "العربية (Arabic)",
-        language_identifier: "ar_SA",
+        language_name: "العربية (Arabic - Saudi Arabia)",
+        language_identifier: "ar-SA",
     ),
     convert_utf8_to_ascii: true,
     fonts: {

assets/voxygen/i18n/be/_manifest.ron

@@ -3,8 +3,8 @@
 /// Localization for Belarusian
 (
     metadata: (
-        language_name: "Беларуская",
-        language_identifier: "be_BY",
+        language_name: "Беларуская мова (Belarusian)",
+        language_identifier: "be",
     ),
     convert_utf8_to_ascii: false,
     fonts: {

assets/voxygen/i18n/ca/_manifest.ron

@@ -3,8 +3,8 @@
 /// Localization for Catalan (Catalonia)
 (
     metadata: (
-        language_name: "Català (Catalunya)",
-        language_identifier: "ca_CA",
+        language_name: "Català (Catalan)",
+        language_identifier: "ca",
     ),
     convert_utf8_to_ascii: false,
     fonts: {

assets/voxygen/i18n/cs/_manifest.ron

@@ -1,8 +1,8 @@
 /// Localization for Čeština
 (
     metadata: (
-        language_name: "Czech",
-        language_identifier: "cz_CZ",
+        language_name: "Čeština (Czech)",
+        language_identifier: "cs",
     ),
     convert_utf8_to_ascii: false,
     fonts: {

assets/voxygen/i18n/de/_manifest.ron

@@ -3,8 +3,8 @@
 /// Localization for Germany German
 (
     metadata: (
-        language_name: "Deutsch",
-        language_identifier: "de_DE",
+        language_name: "Deutsch (German)",
+        language_identifier: "de",
     ),
     convert_utf8_to_ascii: false,
     fonts: {