chore: remove template testcommand & update copyright headers

Deleted the unused template testcommand cog and removed references to it in help.py. Updated copyright headers in database files to reflect usage and edits by neoarz. Also removed copyright and description headers from several Python files for consistency.

cogs/general/help.py

@@ -64,8 +64,6 @@ class Help(commands.Cog, name="help"):
             "shutdown": "owner",
             "say": "owner",
             "invite": "owner",
-            
-            "testcommand": "template"
         }
         
         category_descriptions = {

cogs/owner/cog_management.py

@@ -1,11 +1,3 @@
-"""
-Copyright © Krypton 2019-Present - https://github.com/kkrypt0nn (https://krypton.ninja)
-Description:
-🐍 A simple template to start to code your own and personalized Discord bot in Python
-
-Version: 6.4.0
-"""
-
 import discord
 from discord import app_commands
 from discord.ext import commands

cogs/owner/say.py

@@ -1,11 +1,3 @@
-"""
-Copyright © Krypton 2019-Present - https://github.com/kkrypt0nn (https://krypton.ninja)
-Description:
-🐍 A simple template to start to code your own and personalized Discord bot in Python
-
-Version: 6.4.0
-"""
-
 import discord
 from discord import app_commands
 from discord.ext import commands

cogs/owner/sync.py

@@ -1,11 +1,3 @@
-"""
-Copyright © Krypton 2019-Present - https://github.com/kkrypt0nn (https://krypton.ninja)
-Description:
-🐍 A simple template to start to code your own and personalized Discord bot in Python
-
-Version: 6.4.0
-"""
-
 import discord
 from discord import app_commands
 from discord.ext import commands

cogs/template/testcommand.py

@@ -1,31 +0,0 @@
-"""
-Copyright © Krypton 2019-Present - https://github.com/kkrypt0nn (https://krypton.ninja)
-Description:
-🐍 A simple template to start to code your own and personalized Discord bot in Python
-
-Version: 6.4.0
-"""
-
-from discord.ext import commands
-from discord.ext.commands import Context
-
-
-class TestCommand(commands.Cog, name="testcommand"):
-    def __init__(self, bot) -> None:
-        self.bot = bot
-
-    @commands.hybrid_command(
-        name="testcommand",
-        description="This is a testing command that does nothing.",
-    )
-    async def testcommand(self, context: Context) -> None:
-        """
-        This is a testing command that does nothing.
-
-        :param context: The application command context.
-        """
-        pass
-
-
-async def setup(bot) -> None:
-    await bot.add_cog(TestCommand(bot))