Do not crash on failure to fetch localization percentage

service/settings.py

@@ -559,7 +559,7 @@ class LocaleSettings:
             with open(os.path.join(config.pyfaPath, 'locale', 'progress.json'), "r") as f:
                 self.progress_data = json.load(f)
         except FileNotFoundError:
-            self.progress_data = None
+            self.progress_data = {}
 
     @classmethod
     def getInstance(cls):
@@ -568,14 +568,14 @@ class LocaleSettings:
         return cls._instance
 
     def get_progress(self, lang):
-        if self.progress_data is None:
+        if not self.progress_data:
             return None
         if lang == self.defaults['locale']:
             return None
-        return self.progress_data[lang]
+        return self.progress_data.get(lang)
 
     @classmethod
-    def supported_langauges(cls):
+    def supported_languages(cls):
         """Requires the application to be initialized, otherwise wx.Translation isn't set."""
         pyfalog.info(f'using "{config.CATALOG}" to fetch languages, relatively base path "{os.getcwd()}"')
         return {x: wx.Locale.FindLanguageInfo(x) for x in wx.Translations.Get().GetAvailableTranslations(config.CATALOG)}
@@ -590,6 +590,6 @@ class LocaleSettings:
         return val if val != self.defaults['eos_locale'] else self.settings['locale'].split("_")[0]
 
     def set(self, key, value):
-        if key == 'locale' and value not in self.supported_langauges():
+        if key == 'locale' and value not in self.supported_languages():
             self.settings[key] = self.DEFAULT
         self.settings[key] = value