fix(chore corrected typo in log message

Credit to Stephen Donner.

JitsiConference.js

      * End-to-End Encryption. Make it available if supported.
      */
     if (this.isE2EESupported()) {
-        logger.info('End-to-End Encryprtion is supported');
+        logger.info('End-to-End Encryption is supported');
 
         this._e2eEncryption = new E2EEncryption(this);
     }