v0.2.0: item pickups hold their toast for 5.5s

Toast durations are now per-toast (addToast third arg); passive item and
active item pickups display for 5.5s instead of the default 2.5s.
Cache v=43.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "meatslicer",
   "productName": "MeatSlicer",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "private": true,
   "description": "A Butcher's Descent - clear, harvest, descend.",
   "main": "desktop/main.js",