dl folder fix

client-gui/src/gui_app.rs

@@ -280,6 +280,10 @@ impl eframe::App for P2PClientApp {
                         _ => {}
                     }
                     println!("remaining chunks size: {}", self.remaining_chunks.len());
+                    match create_dir("./Download/") {
+                        Ok(_) => println!("Directory created successfully!"),
+                        Err(e) => println!("Failed to create directory: {}", e),
+                    }
                     if self.remaining_chunks.is_empty() {
                         let file = OpenOptions::new().append(true).create(true).open(
                             "./Download/".to_string()