fix: Prevent terminal disconnects when browser tab loses focus

Add visibility API handling to pause heartbeat monitoring when the browser tab is hidden, preventing false disconnection timeouts. When the tab becomes visible again, verify the connection is still alive or attempt reconnection.

Also remove the ApplicationStatusChanged event listener that was triggering terminal reloads whenever any application status changed across the team.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/Livewire/Project/Shared/Terminal.php

@@ -11,20 +11,6 @@ class Terminal extends Component
 {
     public bool $hasShell = true;
 
-    public function getListeners()
-    {
-        $teamId = auth()->user()->currentTeam()->id;
-
-        return [
-            "echo-private:team.{$teamId},ApplicationStatusChanged" => 'closeTerminal',
-        ];
-    }
-
-    public function closeTerminal()
-    {
-        $this->dispatch('reloadWindow');
-    }
-
     private function checkShellAvailability(Server $server, string $container): bool
     {
         $escapedContainer = escapeshellarg($container);