Show acknowledge author, fixes #1281

Also fix displaying time

src/datasource/zabbix/connectors/zabbix_api/zabbixAPIConnector.ts

@@ -875,6 +875,14 @@ export class ZabbixAPIConnector {
 
     return this.request('valuemap.get', params);
   }
+
+  getUsers() {
+    const params = {
+      output: ['userid', 'username', 'name', 'surname'],
+    };
+
+    return this.request('user.get', params);
+  }
 }
 
 function filterTriggersByAcknowledge(triggers, acknowledged) {

src/datasource/zabbix/zabbix.ts

@@ -47,6 +47,7 @@ const REQUESTS_TO_PROXYFY = [
   'getScripts',
   'getValueMappings',
   'getSLAList',
+  'getUsers',
 ];
 
 const REQUESTS_TO_CACHE = [
@@ -61,6 +62,7 @@ const REQUESTS_TO_CACHE = [
   'getProxies',
   'getValueMappings',
   'getSLAList',
+  'getUsers',
 ];
 
 const REQUESTS_TO_BIND = [
@@ -84,6 +86,7 @@ const REQUESTS_TO_BIND = [
   'executeScript',
   'getValueMappings',
   'getSLAList',
+  'getUsers',
 ];
 
 export class Zabbix implements ZabbixConnector {
@@ -113,6 +116,7 @@ export class Zabbix implements ZabbixConnector {
   getUserMacros: (hostmacroids) => Promise<any>;
   getValueMappings: () => Promise<any>;
   getSLAList: () => Promise<any>;
+  getUsers: () => Promise<any>;
 
   constructor(options) {
     const {