Handle UIB interactions for ignoring channels.

[Kowlin]

Description of the changes

Fixes #6501, this PR handles User Installed Bot interactions where they will error out on trying to check from Threads, as it cannot get the channels it need. Furthermore, this handling like this will NOT check for categories, as the bot cannot gather those from a context where it can only get information from the interaction. Tough luck...

Have the changes in this PR been tested?

Yes, but only internally, this must be tested by trying to reproduce the original error from #6501

[Flame442]

Fixes the issues for pure app commands, but there is still a remaining error for hybrids in particular. Not sure if we want to just fix that here, or if we want to save that for another PR.

File "venv\lib\site-packages\redbot\core\_global_checks.py", line 8, in check_message_is_eligible_as_command
    return await ctx.bot.message_eligible_as_command(ctx.message)
  File "venv\lib\site-packages\redbot\core\bot.py", line 844, in message_eligible_as_command
    if not can_user_send_messages_in(guild.me, channel):
  File "venv\lib\site-packages\redbot\core\utils\__init__.py", line 724, in can_user_send_messages_in
    perms = channel.permissions_for(obj)
  File "venv\lib\site-packages\discord\threads.py", line 425, in permissions_for
    raise ClientException('Parent channel not found')
discord.errors.ClientException: Parent channel not found