Add web front-end and fix API issues

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

@@ -0,0 +1,11 @@
+import { raceInit } from '../observable/race';
+import { operate } from '../util/lift';
+import { identity } from '../util/identity';
+export function raceWith(...otherSources) {
+    return !otherSources.length
+        ? identity
+        : operate((source, subscriber) => {
+            raceInit([source, ...otherSources])(subscriber);
+        });
+}
+//# sourceMappingURL=raceWith.js.map