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/components/PageComponents/Connect/HTTP.test.tsx

@@ -4,14 +4,12 @@ import { TransportHTTP } from "@meshtastic/transport-http";
 import { fireEvent, render, screen, waitFor } from "@testing-library/react";
 import { describe, expect, it, vi } from "vitest";
 
-vi.mock("@core/stores/appStore.ts", () => ({
+vi.mock("@core/stores", () => ({
   useAppStore: vi.fn(() => ({ setSelectedDevice: vi.fn() })),
-}));
-
-vi.mock("@core/stores/deviceStore.ts", () => ({
   useDeviceStore: vi.fn(() => ({
     addDevice: vi.fn(() => ({ addConnection: vi.fn() })),
   })),
+  useMessageStore: vi.fn()
 }));
 
 vi.mock("@core/utils/randId.ts", () => ({