Add web front-end and fix API issues

node_modules/rxjs/dist/esm/internal/operators/throttleTime.js

@@ -0,0 +1,8 @@
+import { asyncScheduler } from '../scheduler/async';
+import { throttle } from './throttle';
+import { timer } from '../observable/timer';
+export function throttleTime(duration, scheduler = asyncScheduler, config) {
+    const duration$ = timer(duration, scheduler);
+    return throttle(() => duration$, config);
+}
+//# sourceMappingURL=throttleTime.js.map