Move app-update-checker files into new folder

src/modules/app-updates/services/AppUpdateChecker.tsx

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { epochToDate } from '@/util/DateHelper.ts';
+import { GetAboutQuery } from '@/lib/graphql/generated/graphql.ts';
+
+type AboutServer = GetAboutQuery['aboutServer'];
+
+export const getVersion = (aboutServer: AboutServer) => {
+    if (aboutServer.buildType === 'Stable') return `${aboutServer.version}`;
+    return `${aboutServer.version}-${aboutServer.revision}`;
+};
+
+export const getBuildTime = (aboutServer: AboutServer) => epochToDate(Number(aboutServer.buildTime)).toString();