update project script methods, replace project script with project client script

res/project_client.lua

@@ -0,0 +1,26 @@
+local menubg
+
+function on_menu_clear()
+    if menubg then
+        menubg:destruct()
+        menubg = nil
+    end
+end
+
+function on_menu_setup()
+    local controller = {}
+    function controller.resize_menu_bg()
+        local w, h = unpack(gui.get_viewport())
+        if menubg then
+            menubg.region = {0, math.floor(h / 48), math.floor(w / 48), 0}
+            menubg.pos = {0, 0}
+        end
+        return w, h
+    end
+    gui.root.root:add(
+        "<image id='menubg' src='gui/menubg' size-func='DATA.resize_menu_bg' "..
+        "z-index='-1' interactive='true'/>", controller)
+    menubg = _GUI_ROOT.menubg
+    controller.resize_menu_bg()
+    menu.page = "main"
+end