fix: show stopped services in list + loading bar on action

- API: --all flag in systemctl list-units to show inactive services
- API: removed head -50 limit
- Android: LinearProgressIndicator while service action is running

src/Controllers/ApiController.php

@@ -573,7 +573,7 @@ class ApiController
                 throw new \RuntimeException('SSH connection failed');
             }
 
-            $output = $ssh->exec('systemctl list-units --type=service --no-pager --no-legend 2>/dev/null | head -50');
+            $output = $ssh->exec('systemctl list-units --type=service --all --no-pager --no-legend 2>/dev/null');
             $ssh->disconnect();
 
             $services = [];