[Minor bug] - Cancelling authentication flow on Outlook add-in

[Spitfireap]

Bug Report

Problematic behavior
On Outlook Classic (desktop client), when cancelling the authentication flow by closing the authentication window, the plugin does not detect it and hangs. Trying to close or serve the event will trigger a warning from Outlook.

Expected behavior/code
The add-in should release the lock when the authentication flow is canceled by the user.

Steps to Reproduce

1. Go to calendar on the Outlook Classic (Desktop) client
2. Create a new event
3. Make sure that you are not connected to ProConnect
4. Add a Visio link
5. Close the authentication window without login
6. And then the bug happens!

Environment- Meet version:

• Platform: LaSuiteNumerique / Visio add-in version 0.2.0

Additional context/Screenshots

• Close the authentication window

• Try to close / save the event