feat: ForumChannel default_reaction_emoji attribute

[davidhozic]

Summary

This implements #2174.

Information

Added default_reaction_emoji parameter to Guild.create_forum_channel() + ForumChannel.edit() and default_reaction_emoji attribute to ForumChannel.

Example:

import discord
import secret

client = discord.Client()

@client.listen("on_ready")
async def start():
    guild = client.get_guild(863071397207212052)

    channel = await guild.create_forum_channel("Test", default_reaction_emoji="😍")
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.delete()

    channel = await guild.create_forum_channel("Test", default_reaction_emoji=863077925757911070)
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.delete()

    channel = await guild.create_forum_channel("Test", default_reaction_emoji=client.get_emoji(863077925757911070))
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.delete()

    channel = await guild.create_forum_channel("Test", default_reaction_emoji="<:coffee_break:863077925757911070>")
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.delete()

    channel = await guild.create_forum_channel("Test", default_reaction_emoji="<a:coffee_break:863077925757911070>")
    print(f"Emoji is: {channel.default_reaction_emoji}")

    await channel.edit(default_reaction_emoji=863077925757911070)
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.edit(default_reaction_emoji=client.get_emoji(863077925757911070))
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.edit(default_reaction_emoji="😙")
    print(f"Emoji is: {channel.default_reaction_emoji}")
    await channel.edit(default_reaction_emoji="<coffee_break:863077925757911070>")
    print(f"Emoji is: {channel.default_reaction_emoji}")

    await channel.delete()

client.run(secret.TOKEN)

• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed).
• This PR is not a code change (e.g. documentation, README, typehinting,
  examples, ...).

Checklist

• I have searched the open pull requests for duplicates.
• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why.
• I have updated the changelog to include these changes.

[plun1331]

edit and create methods could accept a string representation of the emoji (<a:emoji_name:emoji_id>) for convenience, similarly to how Message.add_reaction accepts a string repr of a custom emoji (although it's implemented differently due to how the endpoint works)

other than that lgtm

[davidhozic]

edit and create methods could accept a string representation of the emoji (<a:emoji_name:emoji_id>) for convenience, similarly to how Message.add_reaction accepts a string repr of a custom emoji (although it's implemented differently due to how the endpoint works)

other than that lgtm

It does accept <a:emoji_name:emoji_id>, I'll update the docstrings to make it clearer.

[JustaSqu1d]

Fix documentation formatting

See here, for example.

[JustaSqu1d]

What does this do

https://github.com/davidhozic/pycord/blob/feat/default_forum_reaction/discord/abc.py#L511-L514

[davidhozic]

What does this do

https://github.com/davidhozic/pycord/blob/feat/default_forum_reaction/discord/abc.py#L511-L514

It checks if the key exists and assigns value - if parameter was given to the edit method. If it doesn't exist, it will raise an Exception and not execute the else statement. I wrote it in the style everything is written, one could also use a normal

if (var := sth.get(key)) is not None: ...