Switch to explicit allowed prefix list.

hyperfocus/twitch/component.py

@@ -72,7 +72,7 @@ class FocusComponent(cmds.Component):
 
         This amounts to whether it starts with a punctuation symbol, or it is only emotes and mentions.
         """
-        allowed = message.text.startswith(tuple(punctuation))
+        allowed = message.text.startswith(tuple("!*#%|?><."))
 
         if not allowed:
             allowed = True