Fix email invites address-match checking

Riot was always saying the email address that the invite was sent
to was not associated with your account.

Two fixes here:
 1. We mounted RoomPreviewBar with no invitedEmail prop and then
    changed the prop later, but RoomPreviewBar only checked for it
    on mount. Make sure we re-check when the props change.
 2. Pass oobData through RoomPreviewBar because we need to pass it
    to the RoomAvatar for 3pid invites.

https://github.com/vector-im/riot-web/issues/9816

src/components/structures/RoomView.js

@@ -1551,6 +1551,7 @@ module.exports = React.createClass({
                             joining={this.state.joining}
                             inviterName={inviterName}
                             invitedEmail={invitedEmail}
+                            oobData={this.props.oobData}
                             room={this.state.room}
                         />
                     </div>
@@ -1681,6 +1682,7 @@ module.exports = React.createClass({
                                 joining={this.state.joining}
                                 inviterName={inviterName}
                                 invitedEmail={invitedEmail}
+                                oobData={this.props.oobData}
                                 canPreview={this.state.canPeek}
                                 room={this.state.room}
                 />