Deseasonify: season-lock commands where appropriate

I left as many available as possible. Some of the commands also handle
being outside of their original season, e.g. by showing the amount of
time until Hacktoberfest begins, if not currently active. These were
left available as well.

If a group is to be locked, the `invoke_without_command` param must
be False (default), otherwise the group's callback will be circumvented
if a valid subcommand is invoked.

I adjusted these where necessary, except for the `HacktoberStats` cog,
whose cmd group takes an arg, which would require a more involved
adjustment - I decided to leave it as is, and instead manually lock
both subcommands.

1 files changed, 3 insertions, 2 deletions

diff --git a/bot/seasons/christmas/hanukkah_embed.py b/bot/seasons/christmas/hanukkah_embed.py
index aaa02b27..e73a33ad 100644
--- a/bot/seasons/christmas/hanukkah_embed.py
+++ b/bot/seasons/christmas/hanukkah_embed.py
@@ -5,8 +5,8 @@ from typing import List
 from discord import Embed
 from discord.ext import commands
 
-from bot.constants import Colours
-
+from bot.constants import Colours, Month
+from bot.decorators import in_month
 
 log = logging.getLogger(__name__)
 
@@ -34,6 +34,7 @@ class HanukkahEmbed(commands.Cog):
                 hanukkah_dates.append(date)
         return hanukkah_dates
 
+    @in_month(Month.december)
     @commands.command(name='hanukkah', aliases=['chanukah'])
     async def hanukkah_festival(self, ctx: commands.Context) -> None:
         """Tells you about the Hanukkah Festivaltime of festival, festival day, etc)."""