Restore TF card UI and speaker at 20% volume.

Keep calibrated SoftSPI touch mapping unchanged.

Co-authored-by: Cursor <cursoragent@cursor.com>

include/ui.h

@@ -1,6 +1,9 @@
 #pragma once
 
+#include "sd_info.h"
 #include <stdint.h>
 
 void ui_create();
+void ui_update(const SdCardInfo &info);
+void ui_refresh_audio_buttons();
 void ui_set_touch_debug(int16_t lx, int16_t ly, bool down);