update translation script to ignore locales without .mo files

Author: hughrun

i18n.py

@@ -24,7 +24,8 @@
 locales = []
 for dirpath, dirnames, filenames in os.walk(localedir):
     for dirname in dirnames:
-        locales.append(dirname)
+        if os.path.exists(f"{localedir}/{dirname}/LC_MESSAGES/messages.mo"):
+            locales.append(dirname)
     break
 
 all_translations = {}