Fix disconnection

[yatharthranjan]

• The FCM server sends disconnection requests once in a while (according to docs this is for periodic maintenance, cleaning of stale connections, etc). When this occurs the connection needs to be closed and connected again.

• The smack library sends a presence unavailable (<presence id='tMZDi-119397' type='unavailable'></presence>) message and closes the connection when such a request is received from the server as mentioned in the java docs in this PR.

• This PR adds an interceptor to intercept the presence message and issue a reconnection.

• This also increases the log retention from 7 days to 30 days for normal level logs and 60 days for error logs.

[yatharthranjan]

Might be good to keep a monitor on the logs for disconnection (in case there are any other scenarios where this happens)

Yes that is exactly how I found this bug, as this is very internal and no error is thrown since its the expected behaviour but apparently is not documented well anywhere.

[afolarin]

ok great.

expected behaviour but apparently is not documented well anywhere. :thinking: you might want to send a PR upstream too

[yatharthranjan]

🤔 you might want to send a PR upstream too

Yes perhaps. But our codebase includes various things specific to Radar-base.