Add slash command parameters to the Message Interaction Object

[Stalruth]

At present, Message Components can be used to allow users to engage with a bot's message beyond the simple query-response with Slash Commands. To facilitate the preservation of state these are allowed a custom_id which can be assigned and used to the bot's needs (within the custom_id's 100 character limit).

However these Components are lacking in one key area - if the message they are on was created via an Interaction, there's no way to retrieve the parameters the Interaction was called with. This forces developers to waste precious space in the custom_id to preserve parameters that are already present, just inaccessible.

My hope is that the parameters of the Interaction that created the message are added to the Message Interaction Object, so that developers no longer have to store and parse redundant information in the custom_id.