files: move refresh to ready status

ks_includes/files.py

@@ -29,6 +29,8 @@ class KlippyFiles:
                 self.request_metadata(item["path"])
         elif method == "server.files.metadata":
             for x in result['result']:
+                if params['filename'] not in self.files:
+                    self.files[params['filename']] = {}
                 self.files[params['filename']][x] = result['result'][x]
             if "thumbnails" in self.files[params['filename']]:
                 self.files[params['filename']]['thumbnails'].sort(key=lambda y: y['size'], reverse=True)

screen.py

@@ -707,6 +707,7 @@ class KlipperScreen(Gtk.Window):
             logging.debug("Printer not initialized yet")
             self.printer.state = "not ready"
             return
+        self.files.refresh_files()
         self.show_panel("main_menu", None, remove_all=True, items=self._config.get_menu_items("__main"))
 
     def state_startup(self):
@@ -988,7 +989,6 @@ class KlipperScreen(Gtk.Window):
             return self._init_printer("Error getting printer object data with extra items")
 
         self.files.set_gcodes_path()
-        self.files.refresh_files()
 
         logging.info("Printer initialized")
         self.initialized = True