system is not incuded in change all dbs menus

- system is filtered out of the list that populates db change all dbs

Related to #1048

Author: james-l-m-young

src/dashboard/header/DashboardHeader.tsx

@@ -132,6 +132,7 @@ export const NeoDashboardHeader = ({
                           let tmp = standaloneSettings.standaloneDatabaseList.split(',').map((x) => x.trim());
                           result = result.filter((value) => tmp.includes(value));
                         }
+                        result = result.filter((value) => result.includes(value) && value !== 'system');
                         setDatabases(result);
                       });
                     }