Ensure project-manager's logs are centrally collected

Minor fix to bring back project-manager's logs.

Previous, default, configuration meant that logs for project-manager
ended up in a separate file from the rest of the logs.
Language server logs are being sent to the logging server by default,
so should project-manager's ones as well.

Fixed NPE in `SocketLoggingNode` when no `project.id` is present in
loggers, as is the case with logs coming from project-manager.

Author: hubertp

lib/scala/logging-service-logback/src/main/java/org/enso/logging/service/logback/SocketLoggingNode.java

@@ -76,7 +76,10 @@ public void run() {
         event = (ILoggingEvent) hardenedLoggingEventInputStream.readObject();
         if (projectId == null) {
           try {
-            projectId = UUID.fromString(event.getMDCPropertyMap().get("project.id"));
+            var property = event.getMDCPropertyMap().get("project.id");
+            if (property != null) {
+              projectId = UUID.fromString(property);
+            }
           } catch (IllegalArgumentException e) {
             // ignore
           }

lib/scala/logging-service/src/main/java/org/enso/logging/service/LoggingSetupHelper.java

@@ -77,12 +77,12 @@ logLevel, actualPort, logPath(), logFileSuffix(), config.getServer(), ec)
                   if (result.isFailure()) {
                     setup(Option.apply(logLevel), Option.empty(), logMasking, loggerSetup);
                   } else {
-                    URI uri = result.get();
                     Masking.setup(logMasking);
                     if (!loggerSetup.setup(logLevel)) {
                       LoggingServiceManager.teardown();
                       loggingServiceEndpointPromise.failure(new LoggerInitializationFailed());
                     } else {
+                      URI uri = result.get();
                       loggingServiceEndpointPromise.success(Option.apply(uri));
                     }
                   }

lib/scala/project-manager/src/main/resources/application.conf

@@ -40,7 +40,7 @@ logging-service {
         name = "file"
       }
   ]
-  default-appender = file
+  default-appender = socket
   default-appender = ${?ENSO_APPENDER_DEFAULT}
   log-to-file {
     enable = true
@@ -55,9 +55,9 @@ logging-service {
     port = ${?ENSO_LOGSERVER_PORT}
     log-to-file {
       enable = true
-      enable = ${?ENSO_LOG_TO_FILE}
+      enable = ${?ENSO_LOGSERVER_LOG_TO_FILE}
       log-level = debug
-      log-level = ${?ENSO_LOG_TO_FILE_LOG_LEVEL}
+      log-level = ${?ENSO_LOGSERVER_LOG_TO_FILE_LOG_LEVEL}
     }
     appenders = [ # file/console/socket/sentry
         {