add missing getter

server/service/stringService.js

@@ -189,26 +189,26 @@ class StringService {
 	get telegramRequiresBotTokenAndChatId() {
 		return this.translationService.getTranslation("telegramRequiresBotTokenAndChatId");
 	}
-	
+
 	get webhookUrlRequired() {
 		return this.translationService.getTranslation("webhookUrlRequired");
 	}
-	
+
 	get platformRequired() {
 		return this.translationService.getTranslation("platformRequired");
 	}
-	
+
 	get testNotificationFailed() {
 		return this.translationService.getTranslation("testNotificationFailed");
 	}
 
 	get monitorUpAlert() {
 		return this.translationService.getTranslation("monitorUpAlert");
-	  }
-	  
-	  get monitorDownAlert() {
+	}
+
+	get monitorDownAlert() {
 		return this.translationService.getTranslation("monitorDownAlert");
-	  }
+	}
 
 	getWebhookUnsupportedPlatform(platform) {
 		return this.translationService
@@ -420,6 +420,10 @@ class StringService {
 			.getTranslation("dbFindMonitorById")
 			.replace("${monitorId}", monitorId);
 	}
+
+	get dbUserExists() {
+		return this.translationService.getTranslation("dbUserExists");
+	}
 }
 
 export default StringService;