3 small bugs soled

Cal output remains on after level cal and factory reset and update of correction takes up to 10 seconds to be visible

sa_cmd.c

@@ -273,8 +273,6 @@ usage:
 
 
 VNA_SHELL_FUNCTION(cmd_v)
-
-
 {
     if (argc != 1) {
         shell_printf("%d\r\n", SI4432_Sel);
@@ -537,6 +535,7 @@ VNA_SHELL_FUNCTION(cmd_correction)
   float v = my_atof(argv[2]);
   config.correction_frequency[i] = f;
   config.correction_value[i] = v;
+  redraw_request|=REDRAW_AREA;                  // to ensure the change in level will be visible
   shell_printf("updated %d to %d %.1f\r\n", i, config.correction_frequency[i], config.correction_value[i]);
 }
 

sa_core.c

@@ -3250,7 +3250,7 @@ quit:
 
   in_selftest = false;
   sweep_mode = SWEEP_ENABLE;
-  set_refer_output(0);
+  set_refer_output(-1);
   reset_settings(M_LOW);
 #endif
 }

ui_sa.c

@@ -571,6 +571,7 @@ static UI_FUNCTION_CALLBACK(menu_store_preset_cb)
   (void)item;
   if (data == 100) {
     reset_settings(M_LOW);  // Restore all defaults in Low mode
+    set_refer_output(-1);
  //   setting.mode = -1;
     data = 0;
   }