[Feature Request] LAUNCH_ACTIVITY interaction callback type

[seailz]

General Troubleshooting

• You've have checked for similar feature requests.
• You've updated to the latest version of the API.
• You've have checked the PR's for features relating to your suggestion.

Feature Request Description

https://discord.com/developers/docs/interactions/receiving-and-responding#interaction-response-object-interaction-callback-type