Feature - Implemented More explicit message in relay browser for subscription management

In Options -> Account, there's the link for [Manage Subscriptions]. If you're using Mafia, the link doesn't work, and there's a tooltip saying "This will not work in Kolmafia". Can this also be printed below the link, just so folks that may not see the tooltip don't think their link is broken? Something like:

[Manage Subscriptions]
(Note: This will not work in Kolmafia)

16576. Not quite how you suggested, but still completely obvious, and I updated the Mr. Store replacement too.

Looks good, thank you