Description
Add an option to disable the post of YouTube shorts in the RSS module. It could be a new option to use when creating a new RSS feed and/or a global one.
Why
Because some channels spam it a lot, and it's very annoying.
This option can keep these channels by preventing them from spamming the Discord's channel.
How to implement it?
A simple way is to check if the titles contains #shorts. Another is to check the video resolution (if height is bigger than width, it's a short), but it may require the YouTube API. The RSS feed seems to do not contain this information.