[feature] Allow users to export data via the settings panel (#3140)

* [feature] Allow users to export data via the settings panel

* rename/move some stuff

web/source/settings/views/user/export-import/index.tsx

@@ -0,0 +1,57 @@
+/*
+	GoToSocial
+	Copyright (C) GoToSocial Authors admin@gotosocial.org
+	SPDX-License-Identifier: AGPL-3.0-or-later
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+import React from "react";
+import Export from "./export";
+import Loading from "../../../components/loading";
+import { Error } from "../../../components/error";
+import { useExportStatsQuery } from "../../../lib/query/user/export-import";
+
+export default function ExportImport() {
+	const {
+		data: exportStats,
+		isLoading,
+		isFetching,
+		isError,
+		error,
+	} = useExportStatsQuery();
+
+	if (isLoading || isFetching) {
+		return <Loading />;
+	}
+
+	if (isError) {
+		return <Error error={error} />;
+	}
+
+	if (exportStats === undefined) {
+		throw "undefined account export stats";
+	}
+	
+	return (
+		<>
+			<h1>Export & Import</h1>
+			<p>
+				On this page you can export data from your GoToSocial account, or import data into
+				your GoToSocial account. All exports and imports use Mastodon-compatible CSV files.
+			</p>
+			<Export exportStats={exportStats} />
+		</>
+	);
+}