Fix rageshake with no matrix client

We checked for the presence of a matrix client but then went and
called a method on it assuming it existed on the line below, so,
don't do that.

https://github.com/vector-im/riot-web/issues/13624 pointed this out

src/rageshake/submit-rageshake.ts

@@ -101,7 +101,6 @@ export default async function sendBugReport(bugReportEndpoint: string, opts: IOp
     if (client) {
         body.append('user_id', client.credentials.userId);
         body.append('device_id', client.deviceId);
-    }
 
         if (client.isCryptoEnabled()) {
             const keys = [`ed25519:${client.getDeviceEd25519Key()}`];
@@ -111,6 +110,7 @@ export default async function sendBugReport(bugReportEndpoint: string, opts: IOp
             body.append('device_keys', keys.join(', '));
             body.append('cross_signing_key', client.getCrossSigningId());
         }
+    }
 
     if (opts.label) {
         body.append('label', opts.label);