change Nextion2Text to utf-8

Using this now: https://github.com/MMMZZZZ/Nextion2Text/issues/14#issuecomment-1688084921

advanced/hmi/nspanel_eu_code/alarm.txt

@@ -70,7 +70,7 @@ Text icon_state
         Dragging           : 0
         Send Component ID  : on press and release
         Associated Keyboard: none
-        Text               : 
+        Text               : î’—
         Max. Text Size     : 10
     
 Text bt_home_text
@@ -242,7 +242,7 @@ Button button_back
         Dragging         : 0
         Send Component ID: on press and release
         State            : unpressed
-        Text             : 
+        Text             : î…˜
         Max. Text Size   : 3
     
     Events