fix(babel): Fallback on empty locale.

src/babel/translator.py

@@ -1,9 +1,11 @@
-import gettext
+from typing import Optional
 import logging
 from contextvars import ContextVar
 from collections import defaultdict
 from enum import Enum
 
+import gettext
+
 from discord.app_commands import Translator, locale_str
 from discord.enums import Locale
 
@@ -70,7 +72,8 @@ class LeoBabel(Translator):
     async def unload(self):
         self.translators.clear()
 
-    def get_translator(self, locale, domain):
+    def get_translator(self, locale: Optional[str], domain):
+        locale = locale or SOURCE_LOCALE
         locale = locale.replace('-', '_') if locale else None
         if locale == SOURCE_LOCALE:
             translator = null

src/modules/pomodoro/timer.py

@@ -780,7 +780,7 @@ class Timer:
             logger.info(f"Timer {self!r} has stopped. Auto restart is {'on' if auto_restart else 'off'}")
 
     @log_wrap(action="Destroy Timer")
-    async def destroy(self, reason: str = None):
+    async def destroy(self, reason: Optional[str] = None):
         """
         Deconstructs the timer, stopping all tasks.
         """