refactor(hierarchy): change first_run and locales path

Put first_run and locales dirs to extras

cogs/utils/lang.py

@@ -5,7 +5,7 @@ import config
 class Texts:
     def __init__(self, base: str = 'base'):
         self.locale = config.locale
-        self.texts = gettext.translation(base, localedir='locales',
+        self.texts = gettext.translation(base, localedir='extras/locales',
                                          languages=[self.locale])
         self.texts.install()
 

launcher.py

@@ -14,7 +14,7 @@ try:
     import config
     from cogs.utils.lang import Texts
 except ModuleNotFoundError:
-    import first_run
+    import extras.first_run
 
 
 @contextlib.contextmanager