Add notification to Creator about closing revenue split

[dmtrjsg]

Context

Most of the tokens which are on market do not have revenue split closed which prevents purchases.

Scope

• [ ] Add notification for channels to close revenue split as soon as the time ends
• [ ] Repeat notification every 3 days as long as revenue split remains open

Notification copy:

• [ ] Revenue share ended, unblock purchasing your token by closing revenue share.

Email copy:

• [ ] Revenue share ended, unblock purchasing your token by closing revenue share.
• [ ] CTA > Close revenue share

For both:

• [ ] :warning: importantly, on click we need to redirect channels to the channel view, with Close Revenue Split Modal open, so all they need to do is click the CTA.