moved and adjusted user menu css code

Author: Mieju

packages/application-extension/style/base.css

@@ -16,3 +16,10 @@
 .jp-Toolbar > .jp-Toolbar-item {
   height: unset;
 }
+
+#jp-UserMenu {
+  flex: 0 0 auto;
+  display: flex;
+  text-align: center;
+  margin-top: 8px;
+}

packages/notebook-extension/style/base.css

@@ -261,9 +261,3 @@ body[data-notebook='notebooks']
   overflow: hidden;
   white-space: nowrap;
 }
-
-#jp-UserMenu {
-  flex: 0 0 auto;
-  display: flex;
-  text-align: center;
-}