Print a space after scrolling status

Marlin/src/lcd/dogm/status_screen_DOGM.cpp

           if (--chars) {
             // Print a second copy of the message
             lcd_put_u8str_max(status_message, LCD_PIXEL_WIDTH - (rlen + 2) * (MENU_FONT_WIDTH));
+            lcd_put_wchar(' ');
           }
         }
       }