Client settings per collective and user

Client settings can be stored at the user and and the collective. The
settings used in the application are merged from these two settings,
where any user setting takes precedence. The form can now manage both
variants.

Refs: #838

modules/webapp/src/main/elm/Ports.elm

@@ -11,9 +11,7 @@ port module Ports exposing
     , printElement
     , receiveCheckQueryResult
     , receiveServerEvent
-    , receiveUiSettings
     , removeAccount
-    , requestUiSettings
     , setAccount
     , setUiTheme
     )
@@ -21,7 +19,6 @@ port module Ports exposing
 import Api.Model.AuthResult exposing (AuthResult)
 import Data.QueryParseResult exposing (QueryParseResult)
 import Data.ServerEvent exposing (ServerEvent)
-import Data.UiSettings exposing (StoredUiSettings)
 import Data.UiTheme exposing (UiTheme)
 import Json.Decode as D
 
@@ -46,12 +43,6 @@ port receiveCheckQueryResult : (QueryParseResult -> msg) -> Sub msg
 port initClipboard : ( String, String ) -> Cmd msg
 
 
-port receiveUiSettings : (StoredUiSettings -> msg) -> Sub msg
-
-
-port requestUiSettings : AuthResult -> Cmd msg
-
-
 {-| Creates a new window/tab, writes the contents of the given element
 and calls the print dialog.
 -}