improved auto-discovery of ST-Link devices

src/main.rs

@@ -172,7 +172,7 @@ fn get_first_stm32_serial_port() -> Option<String> {
     for port in ports {
         if let serialport::SerialPortType::UsbPort(info) = port.port_type {
             if let Some(p) = info.product {
-                if p.contains("STM32") {
+                if p.contains("STM32") || p.contains("ST-LINK") {
                     return Some(port.port_name);
                 }
             }