Fix string syntax error in rebuild command

- Replace raw string with escaped string to fix compilation error
- Maintain same functionality with proper string formatting

dashboard/src/ui/mod.rs

@@ -246,18 +246,7 @@ impl TuiApp {
                     if let Some(hostname) = self.current_host.clone() {
                         // Create command that shows logo, rebuilds, and waits for user input
                         let logo_and_rebuild = format!(
-                            r"bash -c 'cat << \"EOF\"
-NixOS System Rebuild
-Target: {}
-
-EOF
-ssh -tt {}@{} \"bash -ic {}\"
-echo
-echo \"========================================\"
-echo \"Rebuild completed. Press any key to close...\"
-echo \"========================================\"
-read -n 1 -s
-exit'",
+                            "bash -c 'cat << \"EOF\"\nNixOS System Rebuild\nTarget: {}\n\nEOF\nssh -tt {}@{} \"bash -ic {}\"\necho\necho \"========================================\"\necho \"Rebuild completed. Press any key to close...\"\necho \"========================================\"\nread -n 1 -s\nexit'",
                             hostname,
                             self.config.ssh.rebuild_user,
                             hostname,