refactor state-handling in helper core

gall-app/urbit/app/browsermanager.hoon

@@ -58,8 +58,10 @@
           `this
   %browsermanager-action
     =/  action  !<(action:browsermanager vase)
-    =/  new-state   state(access-counts (add 1 access-counts.state))
-    [(handle-action action) this(state new-state)]
+    =/  output   (handle-action action state)
+    =/  new-actions=(list card)   +2:output
+    =/  new-state=state-0   +3:output
+    [new-actions this(state new-state)]
   ==
 ++  on-save
   ~&  'on-save'
@@ -73,9 +75,10 @@
 --
 :: Helper core
   ++    handle-action
-  |=  action=action:browsermanager
-  ^-  (list card)
+  |=  [action=action:browsermanager state=state-0]
+  ^-  [(list card) state-0]
   ~&  'Browser Manager action'
   ~&   >>   action
-  ~
+  =/  new-state  state(access-counts (add 1 access-counts.state))
+  [~ new-state]
 --