Rework the Account Popup Widget

Fixed Account Popup Widget Follow/Unfollow
Ignoring now also works, but doesn't have the ability to unignore

Add a URL Delete method to the network manager

Fixes #235

src/singletons/accountmanager.hpp

@@ -17,5 +17,5 @@ public:
     twitch::TwitchAccountManager Twitch;
 };
 
+}  // namespace singletons
 }  // namespace chatterino
-}