hotfix(frontend): Logout and clear token if retrieving user fails

[amanape]

End-user friendly description of the problem this fixes or functionality that this introduces
IF the GET user fails, it is most likely due to an invalid token. The problem is we no longer have a method of refreshing or removing this token on fail, so the app can get confused

• Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below

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Give a summary of what the PR does, explaining any non-trivial design decisions
Logout and clear token if GET user fails

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Link of any specific issues this addresses

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To run this PR locally, use the following command:

docker run -it --rm   -p 3000:3000   -v /var/run/docker.sock:/var/run/docker.sock   --add-host host.docker.internal:host-gateway   -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:f62968f-nikolaik   --name openhands-app-f62968f   docker.all-hands.dev/all-hands-ai/openhands:f62968f