feat: embedded help command

[H4ckerxx44]

Summary

Add embedded help command from nextcord#701

Checklist

• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
  • I have run task pyright and fixed the relevant issues.
• 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, ...)

[MaskDuck]

my ancestor told me that others are fine

[DenverCoder1]

The init file for the module should be updated so that this can be imported directly from nextcord.ext.help_commands

[DenverCoder1]

This is completely up to you since it's your help command design, but I'm thinking maybe cog help should show cog and command descriptions (command.short_doc)?

The first bot is what I currently use and the same as paginated.py in this lib and the Test bot is using yours.

I'm also noticing it does not have markdown support (or any descriptions having backticks). This is also fine if intended, but also something you may want to consider.

Additionally, I think this title is a bit long. Maybe the help [command] instruction would look better as part of the description or footer?

Feel free to take ideas from mine or leave things as is if you prefer.

[H4ckerxx44]

This is completely up to you since it's your help command design, but I'm thinking maybe cog help should show cog and command descriptions (command.short_doc)?

The problem is, what if there are many commands? Both solutions are pretty valid but I think for cogs that have more than a couple commands, the way I do it is better.

And actually, as this is no longer limited by the "the lib shouldn't do your work" part, I might as well give the current implementation a full redesign, my personal bot which I use with my friends has this command but way more upgraded, I will get to work on that and commit tonight / tomorrow.

[H4ckerxx44]

Main help command

Cog help command

Group help command

Command help command

This EmbeddedHelpCommand has been set with

    bot.help_command = EmbeddedHelpCommand(main_embed_color=0x0000ff, main_embed_title="Main Help", main_embed_description="This is the help overview",
                                           command_embed_color=0x00ff00, command_embed_description="Command embed description", command_embed_title="Command embed title",
                                           group_embed_color=0x00ffff, group_embed_description="Group embed description", group_embed_title="Group embed title",
                                           cog_embed_color=0xff0000, cog_embed_description="Cog embed description", cog_embed_title="Cog embed title",
                                           dm_only=False)

[Skelmis]

Untested but lgtm

[DenverCoder1]

Thanks for your patience.

I think I'll merge it for now. The repo can always be enhanced and updated in the future. 👍