Fix monitor service id creation (#1025)

Author: Alberto Iannaccone

Diff for: arduino-ide-extension/src/node/arduino-firmware-uploader-impl.ts

@@ -76,7 +76,7 @@ export class ArduinoFirmwareUploaderImpl implements ArduinoFirmwareUploader {
       fqbn: firmware.board_fqbn,
     };
     try {
-      this.monitorManager.notifyUploadStarted(board, port);
+      await this.monitorManager.notifyUploadStarted(board, port);
       output = await this.runCommand([
         'firmware',
         'flash',

Diff for: arduino-ide-extension/src/node/monitor-manager.ts

@@ -215,6 +215,8 @@ export class MonitorManager extends CoreClientAware {
    * @returns a unique monitor ID
    */
   private monitorID(board: Board, port: Port): MonitorID {
-    return `${board.fqbn}-${port.address}-${port.protocol}`;
+    const splitFqbn = board?.fqbn?.split(':') || [];
+    const shortenedFqbn = splitFqbn.slice(0, 3).join(':') || '';
+    return `${shortenedFqbn}-${port.address}-${port.protocol}`;
   }
 }