reorder menu and add sound settings

main/display_manager.c

@@ -114,4 +114,24 @@ esp_err_t display_manager_init(void)
 lv_disp_t *display_get_disp(void)
 {
     return s_disp;
+}
+
+static bool s_sleeping = false;
+
+esp_err_t display_set_sleep(bool sleep)
+{
+    if (s_panel == NULL) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    if (s_sleeping == sleep) {
+        return ESP_OK;
+    }
+    s_sleeping = sleep;
+    ESP_LOGI(TAG, "Display %s", sleep ? "sleep (off)" : "wake (on)");
+    return esp_lcd_panel_disp_on_off(s_panel, !sleep);
+}
+
+bool display_is_sleeping(void)
+{
+    return s_sleeping;
 }