Use language display name instead of lang name

Allows differentiating between different types of
the same language. Eg Chinese simplified and traditional

Needs better UI/UX.

src/helpers/i18n_data.py

@@ -1,12 +1,12 @@
 LOCALE_DATA = {
-    "cs_CZ": ("Čeština", 100),
+    "cs_CZ": ("Čeština (česko)", 100),
     "de": ("Deutsch", 37),
-    "en_US": ("English", 100),
+    "en_US": ("English (united states)", 100),
     "es": ("Español", 100),
     "fr": ("Français", 80),
     "ja": ("日本語", 75),
-    "nb_NO": ("Norsk bokmål", 21),
+    "nb_NO": ("Norsk bokmål (norge)", 21),
     "uk": ("Українська", 100),
-    "zh_Hans": ("中文", 54),
-    "zh_Hant": ("中文", 76),
+    "zh_Hans": ("中文 (简体)", 54),
+    "zh_Hant": ("中文 (繁體)", 76),
 }

utils/i18n/generate.py

@@ -18,7 +18,7 @@
 lines = []
 
 for locale, pofile in locales_to_pofiles.items():
-    language_name = babel.Locale.parse(locale).get_language_name().capitalize()
+    language_name = babel.Locale.parse(locale).get_display_name().capitalize()
     translation_percentage = int((len(pofile.translated_entries())/total_english_strings) * 100)
 
     lines.append(f""""{locale}": ("{language_name}", {translation_percentage})""")