Update hooks to use undefined for initial state

Client/src/Pages/Uptime/Details/Hooks/useCertificateFetch.jsx

@@ -10,7 +10,7 @@ const useCertificateFetch = ({
 	certificateDateFormat,
 	uiTimezone,
 }) => {
-	const [certificateExpiry, setCertificateExpiry] = useState("N/A");
+	const [certificateExpiry, setCertificateExpiry] = useState(undefined);
 	const [certificateIsLoading, setCertificateIsLoading] = useState(false);
 
 	useEffect(() => {

Client/src/Pages/Uptime/Details/Hooks/useChecksFetch.jsx

@@ -10,8 +10,8 @@ export const useChecksFetch = ({
 	page,
 	rowsPerPage,
 }) => {
-	const [checks, setChecks] = useState([]);
-	const [checksCount, setChecksCount] = useState(0);
+	const [checks, setChecks] = useState(undefined);
+	const [checksCount, setChecksCount] = useState(undefined);
 	const [checksAreLoading, setChecksAreLoading] = useState(false);
 
 	useEffect(() => {

Client/src/Pages/Uptime/Details/Hooks/useMonitorFetch.jsx

@@ -5,7 +5,7 @@ import { useNavigate } from "react-router-dom";
 
 export const useMonitorFetch = ({ authToken, monitorId, dateRange }) => {
 	const [monitorIsLoading, setMonitorsIsLoading] = useState(false);
-	const [monitor, setMonitor] = useState({});
+	const [monitor, setMonitor] = useState(undefined);
 	const navigate = useNavigate();
 
 	useEffect(() => {