Update runtime defs

Use runtime.Store instead of wails.Store

cmd/templates/vanilla/frontend/src/main.js

@@ -4,7 +4,7 @@ const runtime = require('@wailsapp/runtime');
 // Main entry point
 function start() {
 
-	var mystore = wails.Store.New('Counter');
+	var mystore = runtime.Store.New('Counter');
 
 	// Ensure the default app div is 100% wide/high
 	var app = document.getElementById('app');