[ui] scroll into view once, on page load

Do it only for the selected component.

This prevents multiple scroll calls, when it was in the (recursive)
tree component.

src/Gargantext/Components/Forest.purs

@@ -81,8 +81,7 @@ plusCpt :: R.Component Plus
 plusCpt = here.component "plus" cpt
   where
   cpt {} _ = do
-    { backend, pinnedTreeId, route, showLogin, showSearch } <- Store.use
-    route' <- T.useLive T.unequal route
+    { backend, pinnedTreeId, showLogin, showSearch } <- Store.use
 
     -- Behaviors
     let

src/Gargantext/Components/Forest/Tree/Node.purs

@@ -267,6 +267,13 @@ nodeSpanCpt = here.component "nodeSpan" cpt
       let action = NT.InsertCallback (NT.UpdateTree props.id) ("node-span-" <> show props.id) cb
       Notifications.performAction ws action
 
+    R.useEffectOnce' $ do
+      when isSelected $ do
+        mEl <- R2.querySelector ".forest-layout__tree .mainleaf--selected"
+        case mEl of
+          Nothing -> pure unit
+          Just el -> R2.scrollIntoView el
+
     -- Render
 
     pure $