message: adjust sas copy to use device -> session
diff: @@ -75,7 +75,7 @@ export default class VerificationShowSas extends React.Component {
  </div>;
  sasCaption = this.props.isSelf ?
  _t(
  - "Confirm the emoji below are displayed on both devices, in the same order:",
  + "Confirm the emoji below are displayed on both sessions, in the same order:",
  ):
  _t(
  "Verify this user by confirming the following emoji appear on their screen.",
  @@ -89,7 +89,7 @@ export default class VerificationShowSas extends React.Component {
  </div>;
  sasCaption = this.props.isSelf ?
  _t(
  - "Verify this device by confirming the following number appears on its screen.",
  + "Verify this session by confirming the following number appears on its screen.",
  ):
  _t(
  "Verify this user by confirming the following number appears on their screen.",
  