Feat: add option to show data source name (#2007)

Original [PR](https://github.com/grafana/grafana-zabbix/pull/2003)

Fixes #1766

---------

Co-authored-by: olaf <olaf@initworks.com>

devenv/dashboards/zabbix_datasource_features.json

@@ -37,6 +37,7 @@
         "uid": "PCAF1C06DCF802728"
       },
       "descriptionAtNewLine": false,
+      "showDatasourceName": false,
       "descriptionField": true,
       "fontSize": "100%",
       "gridPos": {
@@ -64,6 +65,7 @@
         "allowDangerousHTML": false,
         "customLastChangeFormat": false,
         "descriptionAtNewLine": false,
+        "showDatasourceName": false,
         "descriptionField": true,
         "fontSize": "100%",
         "highlightBackground": false,