Nyx: emuMMC Manage window, Tools UI, and misc updates

- Add gui_emu_tools: emuMMC Manage window with correct positioning (LV_PROTECT_PARENT + re-parent to win)
- Tools: single SD button (tap = SD partition manager, 3s hold = eMMC)
- Remove emuSD from Nyx UI (tabs, UMS, partition manager); keep bootloader emusd
- Shorten Create emuMMC description text by one character
- Storage/build/config and dependency updates

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

nyx/nyx_gui/config.c

@@ -21,11 +21,11 @@
 
 #include "config.h"
 #include <libs/fatfs/ff.h>
+#include <storage/boot_storage.h>
 
 void set_default_configuration()
 {
 	h_cfg.t210b01 = hw_get_chip_id() == GP_HIDREV_MAJOR_T210B01;
-	h_cfg.devmode = fuse_read_hw_state();
 
 	h_cfg.autoboot      = 0;
 	h_cfg.autoboot_list = 0;
@@ -186,9 +186,9 @@ int create_config_entry()
 
 int create_nyx_config_entry(bool force_unmount)
 {
-	bool sd_mounted = sd_get_card_mounted();
+	bool sd_mounted = boot_storage_get_mounted();
 
-	if (!sd_mount())
+	if (!boot_storage_mount())
 		return 1;
 
 	char lbuf[64];
@@ -250,7 +250,7 @@ int create_nyx_config_entry(bool force_unmount)
 	f_close(&fp);
 
 	if (force_unmount || !sd_mounted)
-		sd_unmount();
+		boot_storage_unmount();
 
 	return 0;
 }