Update SIEM and OpenCTI settings icons

Use DatabaseSearch for SIEM and ChartNetwork for OpenCTI to better match the settings semantics.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/pages/SystemSettings.tsx

@@ -1,5 +1,5 @@
 import {Tabs} from 'antd'
-import {Bot, DatabaseZap, Network, Radar, SlidersHorizontal, Tags, UsersRound} from 'lucide-react'
+import {Bot, DatabaseSearch, Network, Radar, SlidersHorizontal, Tags, UsersRound} from 'lucide-react'
 import LDAPSettings from './LDAPSettings'
 import LLMProviderSettings from './LLMProviderSettings'
 import RuntimeSettings from './RuntimeSettings'
@@ -32,7 +32,7 @@ export default function SystemSettings() {
           },
           {
             key: 'siem',
-            label: <IconTabLabel icon={DatabaseZap}>SIEM</IconTabLabel>,
+            label: <IconTabLabel icon={DatabaseSearch}>SIEM</IconTabLabel>,
             children: <SIEMSettings />,
           },
           {

frontend/src/pages/ThreatIntelligenceSettings.tsx

@@ -1,6 +1,6 @@
 import {useCallback, useEffect, useState} from 'react'
 import {Button, Card, Form, Input, InputNumber, message, Space, Switch, Tabs} from 'antd'
-import {DatabaseSearch, SatelliteDish} from 'lucide-react'
+import {ChartNetwork, SatelliteDish} from 'lucide-react'
 import client from '../api/client'
 
 interface AlienVaultOTXConfig {
@@ -207,7 +207,7 @@ export default function ThreatIntelligenceSettings() {
           {
             key: 'opencti',
             label: 'OpenCTI',
-            icon: <DatabaseSearch size={16} />,
+            icon: <ChartNetwork size={16} />,
             children: (
               <Card loading={loading}>
                 <Form form={openctiForm} layout="vertical" initialValues={initialOpenCTIValues()} style={{ maxWidth: 760 }}>