Add names of all languages on Crowdin (#1337)

locales/en-US/languages.json

@@ -1,3 +1,58 @@
 {
-  "en-US": "English (United States)"
+  "ar": "Arabic",
+  "be": "Belarusian",
+  "bg": "Bulgarian",
+  "bn": "Bangla",
+  "ca": "Catalan",
+  "cs": "Czech",
+  "da": "Danish",
+  "de": "German",
+  "de-CH": "German (Switzerland)",
+  "el": "Greek",
+  "en-GB": "English (United Kingdom)",
+  "en-US": "English (United States)",
+  "en-x-lolcat": "LOLCAT",
+  "en-x-pirate": "English (Pirate)",
+  "en-x-updown": "English (Upside down)",
+  "en-x-uwu": "English (UwU)",
+  "eo": "Esperanto",
+  "es": "Spanish",
+  "et": "Estonian",
+  "fi": "Finnish",
+  "fr": "French",
+  "fr-BE": "French (Belgium)",
+  "fr-CA": "French (Canada)",
+  "he": "Hebrew",
+  "hi": "Hindi",
+  "hr": "Croatian",
+  "hu": "Hungarian",
+  "id": "Indonesian",
+  "it": "Italian",
+  "ja": "Japanese",
+  "kk": "Kazakh",
+  "ko": "Korean",
+  "ky": "Kyrgyz",
+  "lt": "Lithuanian",
+  "lv": "Latvian",
+  "ms": "Malay",
+  "nb": "Norwegian Bokmål",
+  "nl": "Dutch",
+  "nn": "Norwegian Nynorsk",
+  "pes": "Persian",
+  "pl": "Polish",
+  "pt": "Portuguese",
+  "pt-BR": "Portuguese (Brazil)",
+  "ro": "Romanian",
+  "ru": "Russian",
+  "ru-x-bandit": "Russian (Bandit)",
+  "sk": "Slovak",
+  "sv": "Swedish",
+  "th": "Thai",
+  "tok": "Toki Pona",
+  "tr": "Turkish",
+  "tt": "Tatar",
+  "uk": "Ukrainian",
+  "vi": "Vietnamese",
+  "zh-Hans": "Chinese (Simplified)",
+  "zh-Hant": "Chinese (Traditional)"
 }