I18n: Show languages in local names (#57367)

* I18n: Show languages in local names

* fixed test

public/locales/en-US/grafana.json

@@ -2,11 +2,7 @@
   "_comment": "Do not manually edit this file, or update these source phrases in Crowdin. The source of truth for English strings are in the code source",
   "common": {
     "locale": {
-      "default": "Default",
-      "en-US": "English",
-      "es-ES": "Spanish",
-      "fr-FR": "French",
-      "zh-Hans": "Chinese (Simplified)"
+      "default": "Default"
     },
     "save": "Save"
   },

public/locales/es-ES/grafana.json

@@ -2,11 +2,7 @@
   "_comment": "Do not manually edit this file. Translations must be made in Crowdin which will sync them back into this file",
   "common": {
     "locale": {
-      "default": "Por defecto",
-      "en-US": "Inglés",
-      "es-ES": "Español",
-      "fr-FR": "Francés",
-      "zh-Hans": "Chino (simplificado)"
+      "default": "Por defecto"
     },
     "save": "Guardar"
   },

public/locales/fr-FR/grafana.json

@@ -2,11 +2,7 @@
   "_comment": "Do not manually edit this file. Translations must be made in Crowdin which will sync them back into this file",
   "common": {
     "locale": {
-      "default": "Par défaut",
-      "en-US": "Anglais",
-      "es-ES": "Espagnol",
-      "fr-FR": "Français",
-      "zh-Hans": "Chinois (simplifié)"
+      "default": "Par défaut"
     },
     "save": "Enregistrer"
   },

public/locales/pseudo-LOCALE/grafana.json

@@ -2,11 +2,7 @@
   "_comment": "Đő ʼnőŧ mäʼnūäľľy ęđįŧ ŧĥįş ƒįľę, őř ūpđäŧę ŧĥęşę şőūřčę pĥřäşęş įʼn Cřőŵđįʼn. Ŧĥę şőūřčę őƒ ŧřūŧĥ ƒőř Ēʼnģľįşĥ şŧřįʼnģş äřę įʼn ŧĥę čőđę şőūřčę",
   "common": {
     "locale": {
-      "default": "Đęƒäūľŧ",
-      "en-US": "Ēʼnģľįşĥ",
-      "es-ES": "Ŝpäʼnįşĥ",
-      "fr-FR": "Fřęʼnčĥ",
-      "zh-Hans": "Cĥįʼnęşę (Ŝįmpľįƒįęđ)"
+      "default": "Đęƒäūľŧ"
     },
     "save": "Ŝävę"
   },

public/locales/zh-Hans/grafana.json

@@ -2,11 +2,7 @@
   "_comment": "Do not manually edit this file. Translations must be made in Crowdin which will sync them back into this file",
   "common": {
     "locale": {
-      "default": "默认",
-      "en-US": "英语",
-      "es-ES": "西班牙语",
-      "fr-FR": "法语",
-      "zh-Hans": "中文（简体）"
+      "default": "默认"
     },
     "save": "保存"
   },