chargingstatus: also buzz on disconnect from charging

After a slight delay, to allow other "charging" handlers to run and
not interrupt the buzz

apps/widChargingStatus/ChangeLog

@@ -1,2 +1,3 @@
 0.01: First release.
 0.02: No functional changes, just moved codebase to Typescript.
+0.03: Also buzz on disconnect from charging

apps/widChargingStatus/metadata.json

@@ -2,7 +2,7 @@
   "name": "Charging Status",
   "shortName":"ChargingStatus",
   "icon": "widget.png",
-  "version":"0.02",
+  "version":"0.03",
   "type": "widget",
   "description": "A simple widget that shows a yellow lightning icon to indicate whenever the watch is charging. This way one can see the charging status at a glance, no matter which battery widget is being used.",
   "tags": "widget",

apps/widChargingStatus/widget.js

@@ -23,6 +23,7 @@
                 widget.width = iconWidth;
             }
             else {
+                Promise.resolve().then(function () { return require("buzz").pattern("..;"); });
                 widget.width = 0;
             }
             Bangle.drawWidgets();

apps/widChargingStatus/widget.ts

@@ -31,6 +31,7 @@
         Bangle.buzz();
         widget.width = iconWidth;
       } else {
+        Promise.resolve().then(() => require("buzz").pattern("..;"));
         widget.width = 0;
       }
       Bangle.drawWidgets(); // re-layout widgets