feat: add AdminContext for managing upload state in admin dashboard

app/routes/_admin.lg-admin._dashboard.tsx

@@ -2,6 +2,7 @@ import { Outlet } from 'react-router'
 
 import { getCategories } from '~/apis/common/get-categories'
 import { getTags } from '~/apis/common/get-tags'
+import { AdminProvider } from '~/contexts/admin'
 import { AdminDashboardLayout } from '~/layouts/admin/dashboard'
 
 import type { Route } from './+types/_admin.lg-admin._dashboard'
@@ -18,9 +19,11 @@ export const loader = async ({}: Route.LoaderArgs) => {
 
 const DashboardLayout = () => {
   return (
-    <AdminDashboardLayout>
-      <Outlet />
-    </AdminDashboardLayout>
+    <AdminProvider>
+      <AdminDashboardLayout>
+        <Outlet />
+      </AdminDashboardLayout>
+    </AdminProvider>
   )
 }
 export default DashboardLayout