Add web front-end and fix API issues

node_modules/rxjs/dist/cjs/internal/util/isScheduler.js

@@ -0,0 +1,9 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isScheduler = void 0;
+var isFunction_1 = require("./isFunction");
+function isScheduler(value) {
+    return value && isFunction_1.isFunction(value.schedule);
+}
+exports.isScheduler = isScheduler;
+//# sourceMappingURL=isScheduler.js.map