tidy some warnings in Sessions, Ends, Config.REST

src/Gargantext/Config/REST.purs

 module Gargantext.Config.REST where
 
-import Gargantext.Prelude
-import Gargantext.Ends
+import Prelude (Unit, bind, logs, pure, ($), (<$>), (<<<), (<>))
 
 import Affjax (defaultRequest, printResponseFormatError, request)
 import Affjax.RequestBody (RequestBody(..), string)

src/Gargantext/Ends.purs

@@ -4,7 +4,7 @@ module Gargantext.Ends
   where
 
 import Prelude (class Eq, class Show, identity, show, ($), (<>), bind, pure, (<<<), (==))
-import Data.Argonaut ( class DecodeJson, decodeJson, class EncodeJson, encodeJson, (:=), (~>), jsonEmptyObject, (.:))
+import Data.Argonaut ( class DecodeJson, decodeJson, class EncodeJson, (:=), (~>), jsonEmptyObject, (.:))
 import Data.Foldable (foldMap)
 import Data.Generic.Rep (class Generic)
 import Data.Generic.Rep.Eq (genericEq)

src/Gargantext/Sessions.purs

 -- | A module for authenticating to create sessions and handling them
 module Gargantext.Sessions where
 
-import Prelude (class Eq, class Show, Unit, const, otherwise, pure, show, unit, ($), (*>), (<*), (<$>), (<>), (==), (/=), (>>=), (>=>), (<<<), bind, map)
-import Control.Monad.Except (runExcept)
-import Data.Argonaut ( class DecodeJson, decodeJson, class EncodeJson, encodeJson, (:=), (~>), (.:), Json)
+import Prelude (class Eq, class Show, Unit, const, otherwise, pure, show, unit, ($), (*>), (<*), (<$>), (<>), (==), (/=), (>>=), (<<<), bind)
+import Data.Argonaut ( class DecodeJson, decodeJson, class EncodeJson, encodeJson, (:=), (~>), (.:))
 import Data.Argonaut.Core (Json, fromArray, jsonEmptyObject, stringify)
 import Data.Argonaut.Parser (jsonParser)
 import Data.Array as A
@@ -26,7 +25,6 @@ import Gargantext.Components.Login.Types
 import Gargantext.Config.REST as REST
 import Gargantext.Ends (class ToUrl, Backend, backendUrl, toUrl, sessionPath)
 import Gargantext.Routes (SessionRoute)
-import Gargantext.Prelude (logs)
 import Gargantext.Types (NodePath, SessionId(..), nodePath)
 import Gargantext.Utils.Reactix as R2
 
@@ -100,7 +98,7 @@ instance decodeJsonSessions :: DecodeJson Sessions where
 
     where
       decodeSessions :: Json -> Either String (Array Session)
-      decodeSessions json = decodeJson json
+      decodeSessions json2 = decodeJson json2
                           >>= \obj -> obj .: "sessions"
                           >>= traverse decodeJson
 
@@ -192,10 +190,10 @@ mapLeft _ (Right r) = Right r
 
 saveSessions :: Sessions -> Effect Sessions
 saveSessions sessions = effect *> pure sessions where
-  remove = getls >>= removeItem localStorageKey
+  rem = getls >>= removeItem localStorageKey
   set v  = getls >>= setItem    localStorageKey v
   effect
-    | null sessions = remove
+    | null sessions = rem
     | otherwise = set (stringify $ encodeJson sessions)
 
 postAuthRequest :: Backend -> AuthRequest -> Aff (Either String Session)