Add web front-end and fix API issues

node_modules/rxjs/dist/esm/internal/util/pipe.js

@@ -0,0 +1,16 @@
+import { identity } from './identity';
+export function pipe(...fns) {
+    return pipeFromArray(fns);
+}
+export function pipeFromArray(fns) {
+    if (fns.length === 0) {
+        return identity;
+    }
+    if (fns.length === 1) {
+        return fns[0];
+    }
+    return function piped(input) {
+        return fns.reduce((prev, fn) => fn(prev), input);
+    };
+}
+//# sourceMappingURL=pipe.js.map