Implement refresh on ctrl-r and close on ctrl-w

frontend/wailsjs/go/main/App.d.ts

@@ -2,6 +2,8 @@
 // This file is automatically generated. DO NOT EDIT
 import {main} from '../models';
 
+export function Close():Promise<void>;
+
 export function CreateFood(arg1:main.Food):Promise<main.WailsFood1>;
 
 export function CreateWeight(arg1:main.Weight):Promise<main.WailsWeight1>;