feat: add help_forum cog

[alentoghostflame]

Adds a cog that uses a forum channel for help threads.

Adds a couple environmental variables:

• HELP_FORUM_CHANNEL_ID: (DOESNT EXIST YET NEED TO ADD) The channel ID of the forum channel to act as a help forum.
• HELP_FORUM_TAG_CLOSED_ID: (NEED TO RENAME TO THIS) The ID of the forum tag used to denote that a thread is closed.

Adds venv/ to .gitignore because PyCharm on Ubuntu defaults to the virtual environment for the project being venv/.

Updates the pyproject.toml to more modern standards, both for poetry and for our organization.

Comments out loading jishaku in main.py due to Jishaku no longer working with Nextcord.

I have no idea how poetry.lock works or why so much of it has changed, I don't even like using poetry I prefer just good ol' pip.

I'm aware there is commented debug code that needs to be removed, will do later.