Significant rework in how events are updated from components.

package.json

@@ -16,6 +16,7 @@
   "license": "MIT",
   "dependencies": {
     "@cycjimmy/jsmpeg-player": "^5.0.1",
+    "@lit-labs/task": "^1.0.0",
     "@material/image-list": "^12.0.0",
     "@material/mwc-menu": "^0.25.3",
     "@material/rtl": "^13.0.0",