Add web front-end and fix API issues

node_modules/rxjs/dist/esm5/internal/observable/of.js

@@ -0,0 +1,11 @@
+import { popScheduler } from '../util/args';
+import { from } from './from';
+export function of() {
+    var args = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+        args[_i] = arguments[_i];
+    }
+    var scheduler = popScheduler(args);
+    return from(args, scheduler);
+}
+//# sourceMappingURL=of.js.map