Change brightness when adjusted to a different value

Solves #2006

esphome/nspanel_esphome_core.yaml

@@ -1318,7 +1318,7 @@ number:
         - lambda: |-
             disp1->send_command_printf("brightness_dim=%i", int(x));
             disp1->set_component_value("settings.dimslider", int(x));
-            if (current_page->state != "screensaver" and current_brightness->state <= x) {
+            if (current_page->state != "screensaver" and current_brightness->state != x) {
               set_brightness->execute(x);
               timer_sleep->execute();
               if (current_page->state == "settings") disp1->set_component_text_printf("dim_text", "%i%%", int(x));