[Utils] add missing G.U.Monad

src/Gargantext/Utils/Monad.purs

+module Gargantext.Utils.Monad where
+
+import Prelude (unit, pure, Unit, (<<<))
+import Control.Monad (class Monad, (>>=))
+import Data.Foldable (class Foldable, foldr)
+
+bind_ :: forall a b m. Monad m => m a -> m b -> m b
+bind_ m k = m >>= \_ -> k -- See Note [Recursive bindings for Applicative/Monad]
+
+infixr 1 bind_ as >>
+
+mapM_ :: forall a b t m. Foldable t => Monad m => (a -> m b) -> t a -> m Unit
+mapM_ f = foldr ((>>) <<< f) (pure unit)