Add prompt before shutdown

apps/poweroff/app.js

@@ -1,5 +1,14 @@
 g.clear();
 
+E.showPrompt('Are you sure?', {
+  title: 'Power off',
+  buttons: { Yes: true, No: false },
+}).then((confirm) => {
+  if (!confirm) {
+    setTimeout(load, 100);
+    return;
+  }
+
   g.setFont("6x8",2).setFontAlign(0,0);
   var x = g.getWidth()/2;
   var y = g.getHeight()/2 + 10;
@@ -8,6 +17,7 @@ g.setFont("6x8",2).setFontAlign(0,0);
   setTimeout(function() {
     if (Bangle.softOff) Bangle.softOff(); else Bangle.off();
   }, 1000);
+});
 
 Bangle.loadWidgets();
 Bangle.drawWidgets();

apps/poweroff/metadata.json

@@ -1,7 +1,7 @@
 { "id": "poweroff",
 "name": "Poweroff",
 "shortName":"Poweroff",
-"version":"0.01",
+"version":"0.02",
 "description": "Simple app to power off your Bangle.js",
 "icon": "app.png",
 "tags": "tool, poweroff, shutdown",