Implement subscribe command

[SageStarCodes]

Implement a command that allows users to:

• subscribe to new posts by the Node-Videos-Alert using a role
• unsubscribe users from the posts by removing the role

OR

Add information to the #welcome channel describing how to enable notifications for the #new-videos channel.

[jemand771]

we could also save the snowflake ids of subscribed users in the db instead of using a role. Though i dont see any advantages/disadvantages in doing so

[SageStarCodes]

How would you notify the users even if you had their IDs?

[SageStarCodes]

Hm... I just realized this is not an issue for E-D-G-E, we shouldn't rely on having a specific role and specific webhook available to us