feat: Support for menu in interaction response

[DenverCoder1]

Fixes #26

This PR allows menus to be sent in response to an interaction such as components and slash commands.

Differences between menus in message commands and slash commands:

pages.start(interaction=interaction) will be used in place of pages.start(ctx)

Ephemeral responses:

pages.start(interaction=interaction, ephemeral=True)

(Note: reaction menus cannot be send with ephemeral due to a Discord limitation)

Sending an initial message with interaction response:

await self.interaction.response.send_message(**kwargs)
return await self.interaction.original_message()

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This version (1.4.0) can be tested early with

pip install -U git+https://github.com/DenverCoderOne/nextcord-ext-menus@interaction-response#egg=nextcord-ext-menus

[justt-jay]

This change is going to work well, I'm excited about this.

[TAG-Epic]

Not tested