- remove all PHP "_ZMQ_" related dependencies from Pathfinder. PHP´s native Sockets work as replacement

- added status information for "WebSocket" installations to `/setup` page (e.g. active connections, startup time)
- removed "ext-zmq" as required PHP extension
- removed "react/zmq" as required Composer package
- removed "websoftwares/monolog-zmq-handler" as required Composer package

app/main/model/mapmodel.php

@@ -982,7 +982,7 @@ class MapModel extends AbstractMapTrackingModel {
         if($this->isHistoryLogEnabled()){
             // check socket config
             if(Config::validSocketConnect()){
-                $log->addHandler('zmq', 'json', $this->getSocketConfig());
+                $log->addHandler('socket', 'json', $this->getSocketConfig());
             }else{
                 // update log file local (slow)
                 $log->addHandler('stream', 'json', $this->getStreamConfig());
@@ -1155,7 +1155,7 @@ class MapModel extends AbstractMapTrackingModel {
      */
     public function getSocketConfig(): \stdClass{
         $config = (object) [];
-        $config->uri = Config::getSocketUri();
+        $config->dsn = Config::getSocketUri();
         $config->streamConf = $this->getStreamConfig(true);
         return $config;
     }