Docs: Feedback for Configuring Logging

Hi, I have some feedback about [this page](https://github.com/hazelcast/hz-docs/edit/main/docs/modules/maintain-cluster/pages/logging.adoc)

Doc says that the default value for the logging.type is **jdk: JDK logging (default)**. It is correct if you are running Hazelcast in embedded mode or if you using HazelcastServerCommandLine.

But in the provided official start **hz** start script, the default is actually configured as **log4j2**.

```
if [ -z "$LOGGING_CONFIG" ]; then
# Use the default log4j2 file
LOGGING_CONFIG="file:$HAZELCAST_HOME/config/log4j2.properties"
else
if [ -f "$LOGGING_CONFIG" ]; then
# Try if the file exists - either absolute or relative path
LOGGING_CONFIG="file:$LOGGING_CONFIG"
elif [ -f "$HAZELCAST_HOME/config/$LOGGING_CONFIG" ]; then
# Try file in the config directory
LOGGING_CONFIG="file:$HAZELCAST_HOME/config/$LOGGING_CONFIG"
else
echo "Could not find specified LOGGING_CONFIG file."
exit 1
fi
fi
```

We can update the doc to cover both scenario.

Review docs/modules/maintain-cluster/pages/logging.adoc and compare its logging.type default with the provided official hz start script. Update the page to distinguish embedded mode and HazelcastServerCommandLine from the hz script scenario, then verify that both logging defaults are accurately documented.

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