Add web front-end and fix API issues

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

@@ -0,0 +1,6 @@
+import { not } from '../util/not';
+import { filter } from './filter';
+export function partition(predicate, thisArg) {
+    return (source) => [filter(predicate, thisArg)(source), filter(not(predicate, thisArg))(source)];
+}
+//# sourceMappingURL=partition.js.map