Refactor and consolidate store imports (#774)

* Refactor  and consolitdate store imports

- Created a new index file in the core stores directory to export all stores from a single module.
- Updated imports to use consolidated store exports.

* Remove unnecessary import

* Update imports

* Use named exports

* Change store import after merge

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Co-authored-by: philon- <philon-@users.noreply.github.com>

packages/web/src/routes.tsx

@@ -1,6 +1,5 @@
 import { DialogManager } from "@components/Dialog/DialogManager.tsx";
-import type { useAppStore } from "@core/stores/appStore.ts";
-import type { useMessageStore } from "@core/stores/messageStore/index.ts";
+import type { useAppStore, useMessageStore } from "@core/stores";
 import ChannelsPage from "@pages/Channels.tsx";
 import ConfigPage from "@pages/Config/index.tsx";
 import { Dashboard } from "@pages/Dashboard/index.tsx";