Add web front-end and fix API issues

node_modules/rxjs/dist/esm/internal/scheduler/Action.js

@@ -0,0 +1,10 @@
+import { Subscription } from '../Subscription';
+export class Action extends Subscription {
+    constructor(scheduler, work) {
+        super();
+    }
+    schedule(state, delay = 0) {
+        return this;
+    }
+}
+//# sourceMappingURL=Action.js.map