[lib] Add staff alert for missing device keys

Summary: https://linear.app/comm/issue/ENG-9839/session-does-not-exist-alerts-on-web-app

Test Plan: Run flow

Reviewers: tomek, kamil

Reviewed By: kamil

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13887

lib/tunnelbroker/use-peer-to-peer-message-handler.js

@@ -227,6 +227,11 @@ function usePeerToPeerMessageHandler(): (
               `${senderDeviceID}: No keys for the device, ` +
               `session version: ${sessionVersion}`,
           );
+          showAlertToStaff(
+            'Error creating inbound session with device ',
+            `${senderDeviceID}: No keys for the device, ` +
+              `session version: ${sessionVersion}`,
+          );
           return;
         }