move nfc to background tasks

src/drivers/nfc_pn532.rs

@@ -243,6 +243,7 @@ where
                     Err(e) => {
                         error!("Parsing page failed: {e}");
                         if e.status_code.is_some_and(|e| e.protocol_error) {
+                            // After protocol error, all subsequent reads will fail, so we can stop trying to read more pages.
                             return Err("Failed to parse NFC page");
                         }
                     }