fixup: provide saslprep function in no-op polyfill

Author: Anemy

packages/compass-web/polyfills/@mongodb-js/saslprep/index.ts

@@ -1 +1,7 @@
-export default {};
+export function saslprep(): void {
+  // no-op
+}
+
+export default {
+  saslprep,
+};