chore: admin folder structure (#8632)

* chore: admin folder structure

* fix: copy right check and formatting

* fix: types

apps/admin/core/providers/instance.provider.tsx

@@ -1,24 +0,0 @@
-/**
- * Copyright (c) 2023-present Plane Software, Inc. and contributors
- * SPDX-License-Identifier: AGPL-3.0-only
- * See the LICENSE file for details.
- */
-
-import { observer } from "mobx-react";
-import useSWR from "swr";
-// hooks
-import { useInstance } from "@/hooks/store";
-
-export const InstanceProvider = observer(function InstanceProvider(props: React.PropsWithChildren) {
-  const { children } = props;
-  // store hooks
-  const { fetchInstanceInfo } = useInstance();
-  // fetching instance details
-  useSWR("INSTANCE_DETAILS", () => fetchInstanceInfo(), {
-    revalidateOnFocus: false,
-    revalidateIfStale: false,
-    errorRetryCount: 0,
-  });
-
-  return <>{children}</>;
-});