Redesign navigation for RSS feeds

In 2.9 the navigation changes removed the users own profile node from the navigation (because it is in the user menu and all nodes that were previously under this in the navigation should now exist on one of the profile/preferences pages. This means the links to subscribe to your own blog feed have been removed (but you can still subscribe to someone else's).

This issue is about redesigning the navigation to subscribe to an RSS feed - we can just move the links out of the navigation and into the page (for blog feeds) - but we should consider other RSS feeds at the same time and either make them consistent - or decide to leave them as is.