Fix typo

react/features/base/lib-jitsi-meet/native/RTCPeerConnection.js

 /* eslint-enable max-depth */
 
 /**
- * Completes the asynchronous ynthesis of IPv6 addresses.
+ * Completes the asynchronous synthesis of IPv6 addresses.
  *
  * @param {RTCSessionDescription} sessionDescription - The RTCSessionDescription
  * for which IPv6 addresses are being synthesized.