Add video feed feature with related components and hooks

- Implemented VideoFeed component to display sightings.
- Created useSightingList and useVideoFeed hooks for data fetching and state management.
- Added AppProviders for context management.
- Updated Dashboard to include VideoFeed.
- Introduced types for sightings in utils/types.tsx.
- Added Header and Footer components for layout.
- Configured React Query for data handling.

src/routes/__root.tsx

@@ -1,6 +1,6 @@
 import { createRootRoute, Outlet } from "@tanstack/react-router";
-import Header from "../ui/Header";
-import Footer from "../ui/Footer";
+import Header from "../components/ui/Header";
+import Footer from "../components/ui/Footer";
 
 const RootLayout = () => {
   return (