SubGhz: fix GUI ReadRAW and add new man (#843)

* Notification: add sequence_single_vibro
* SubGhz: optimizing the performance of the GUI ReadRAW
* SubGhz: full highlighting of the default filename on save
* SubGhz: add man Leopard, Faraon, Reff, ZX-750, Back_SL-B9, fix syntax

Co-authored-by: あく <alleteam@gmail.com>

lib/subghz/subghz_file_encoder_worker.c

@@ -163,6 +163,7 @@ static int32_t subghz_file_encoder_worker_thread(void* context) {
                 break;
             }
         }
+        osDelay(5);
     }
     //waiting for the end of the transfer
     FURI_LOG_I(TAG, "End read file");