1.Added Icon-maintenance-gray.png to assets/images. 2.Imported and used MaintenanceIcon in DashboardMenuButton for the maintenance page button.

Client/src/Components/DashboardMenu/index.jsx

@@ -5,6 +5,7 @@ import Monitors from "../../assets/Images/Icon-monitor-gray.png";
 import Incidents from "../../assets/Images/Icon-warning-gray.png";
 import SensorsIcon from "../../assets/Images/Icon-signal-gray.png";
 import AllInclusiveIcon from "../../assets/Images/Icon-link-gray.png";
+import MaintenanceIcon from "../../assets/Images/Icon-maintenance-gray.png";
 import SettingsIcon from "../../assets/Images/Icon-setting-gray.png";
 import React, { useState, useEffect } from "react";
 import { useNavigate, useLocation } from "react-router-dom";
@@ -63,7 +64,7 @@ function DashboardMenu() {
         () => handleClick(pathMap["/integrations"], "/integrations")
       )}
       {DashboardMenuButton(
-        AllInclusiveIcon,
+        MaintenanceIcon,
         "Maintenance",
         "/maintenance",
         activeButton === "/maintenance",