➕(frontend) add @timephy/rnnoise-wasm for noise suppression

Install wrapper around Jitsi's RNNoise implementation for easier reuse.
Note: Library may not properly release WebAssembly resources based on
code review.

src/frontend/package.json

@@ -20,6 +20,7 @@
     "@react-aria/toast": "3.0.2",
     "@remixicon/react": "4.6.0",
     "@tanstack/react-query": "5.76.0",
+    "@timephy/rnnoise-wasm": "1.0.0",
     "crisp-sdk-web": "1.0.25",
     "hoofd": "1.7.3",
     "i18next": "25.1.2",