Moves the modmail config check to setup (#980)

Moves the check if modmail is disabled to the setup function to prevent the modmail bot from trying to load at all

Author: ajax146

techsupport_bot/commands/modmail.py

@@ -811,6 +811,13 @@ async def log_closure(
 
 async def setup(bot):
     """Sets the modmail extension up"""
+
+    # Only runs if modmail is enabled
+    if not bot.file_config.modmail_config.enable_modmail:
+        # Raising an exception makes the extension loading mark as failed, this is surprisingly
+        # the most reliable way to ensure the modmail bot or code doesn't run
+        raise AttributeError("Modmail was not loaded because it's disabled")
+
     config = extensionconfig.ExtensionConfig()
 
     config.add(
@@ -867,12 +874,6 @@ def __init__(self: Self, bot: bot.TechSupportBot):
         # Init is used to make variables global so they can be used on the modmail side
         super().__init__(bot=bot)
 
-        # Only runs if modmail is enabled
-        if not bot.file_config.modmail_config.enable_modmail:
-            # Raising an exception makes the extension loading mark as failed, this is surprisingly
-            # the most reliable way to ensure the modmail bot or code doesn't run
-            raise AttributeError("Modmail was not loaded because it's disabled")
-
         # Makes the TS client available globally for creating threads and populating them with info
         # pylint: disable=W0603
         global Ts_client