.screenshot command able to post NSFW content outside of NSFW channel

[Debuggingss]

The .screenshot command is able to post a screenshot of any website, including NSFW.

This may be considered a violation of the Discord Developer Policy:

https://discord.com/developers/docs/policy#don%E2%80%99t-do-anything-illegal-harmful-or-otherwise-not-cool

to distribute NSFW material without an NSFW tag; or

[supahfox]

Rip