Add web front-end and fix API issues

node_modules/rxjs/dist/cjs/internal/operators/subscribeOn.js

@@ -0,0 +1,12 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.subscribeOn = void 0;
+var lift_1 = require("../util/lift");
+function subscribeOn(scheduler, delay) {
+    if (delay === void 0) { delay = 0; }
+    return lift_1.operate(function (source, subscriber) {
+        subscriber.add(scheduler.schedule(function () { return source.subscribe(subscriber); }, delay));
+    });
+}
+exports.subscribeOn = subscribeOn;
+//# sourceMappingURL=subscribeOn.js.map