Enable syncing all accounts in one click (#948)

* Enable syncing all accounts on one click

* Remove argument to sync_later method call

* Add partial for sync all accounts button

* Redirect back if possible when syncing all accounts

config/routes.rb

@@ -63,6 +63,7 @@ Rails.application.routes.draw do
     collection do
       get :summary
       get :list
+      post :sync_all
     end
 
     member do