allow typehint for TextChannel and VoiceChannel

[MaskDuck]

Summary

typehint for TextChannel and VoiceChannel for app cmds

What is the feature request for?

Application commands

The Problem

slash command typehint is fucked up and made me confused

The Ideal Solution

@slash_command(name="never", description="gonna give you up")
    async def _never(
        self,
        interaction: Interaction,
        channel: VoiceChannel = SlashOption(
            name="channel",
            description="rickroller should works"
        ),
    ):
        ...

The Current Solution

@slash_command(name="never", description="gonna give you up")
    async def _never(
        self,
        interaction: Interaction,
        channel: abc.GuildChannel = SlashOption(
            name="channel",
            description="rickroller should works",
            channel_types=[ChannelType.voice],
        ),
    ):
        ...

Additional Context

No response

[ooliver1]

half links to #591 and the ability that would come with