Regularize context menu

"Open in new Window" goes on top, as it does in most other context menus
with similar items

"Leave room" goes on the bottom with a separator above it, because it's
a mildly destructive action.

imports/NeoChat/Menu/RoomListContextMenu.qml

@@ -15,6 +15,13 @@ Menu {
     id: root
     property var room
 
+    MenuItem {
+        text: i18n("Open in new window")
+        onTriggered: roomManager.openWindow(room);
+    }
+
+    MenuSeparator {}
+
     MenuItem {
         text: room.isFavourite ? i18n("Remove from Favourites") : i18n("Add to Favourites")
 
@@ -27,8 +34,6 @@ Menu {
         onTriggered: room.isLowPriority ? room.removeTag("m.lowpriority") : room.addTag("m.lowpriority", 1.0)
     }
 
-    MenuSeparator {}
-
     MenuItem {
         text: i18n("Mark as Read")
 
@@ -42,12 +47,5 @@ Menu {
         onTriggered: room.forget()
     }
 
-    MenuSeparator {}
-
-    MenuItem {
-        text: i18n("Open in new window")
-        onTriggered: roomManager.openWindow(room);
-    }
-
     onClosed: destroy()
 }