Add web front-end and fix API issues

node_modules/rxjs/dist/esm5/internal/util/isIterable.js

@@ -0,0 +1,6 @@
+import { iterator as Symbol_iterator } from '../symbol/iterator';
+import { isFunction } from './isFunction';
+export function isIterable(input) {
+    return isFunction(input === null || input === void 0 ? void 0 : input[Symbol_iterator]);
+}
+//# sourceMappingURL=isIterable.js.map