Summary: Per title, if a plugin makes a client call, show a quick notif so that the user knows why his plugin interactions aren't responding in case the plugin doesn't use `isConnected` guards. This might turn out to be too spammy, but I think it should be ok. Reviewed By: nikoant Differential Revision: D26277099 fbshipit-source-id: bd555ea84acae6189ec7f8fff0fc0a088dbc5337