Refactor KeepOnline logic and add useKeepOnline hook

Moved dashboard path check from KeepOnline to a new KeepOnlineWrapper component for cleaner separation of concerns. Introduced a reusable useKeepOnline hook to encapsulate the online status update logic. Updated layout to use KeepOnlineWrapper and simplified KeepOnline. Minor cleanup in broadcast-dialog.tsx.

app/layout.tsx

@@ -3,9 +3,9 @@ import "./globals.css"
 import { ThemeProvider } from "@/components/layout/theme-provider"
 import { Toaster } from "sonner"
 import type React from "react"
-import KeepOnline from "@/components/KeepOnline"
 import { NotificationProvider } from "@/lib/notification-context"
 import { Metadata, Viewport } from "next"
+import KeepOnlineWrapper from "@/components/layout/KeepOnlineWrapper"
 
 const inter = Inter({ subsets: ["latin"] })
   
@@ -77,7 +77,7 @@ export default function RootLayout({
               richColors 
               position="top-right" 
             />
-            <KeepOnline />
+            <KeepOnlineWrapper />
             {children}
           </NotificationProvider>
         </ThemeProvider>