Fixing network displayed name for recovery + small refactoring

diff --git a/Makefile b/Makefile
index 658453d..98f5db5 100644
--- a/Makefile
+++ b/Makefile
@@ -112,6 +112,7 @@ else ifeq ($(COIN),bitcoin_recovery)
     DEFINES   += COIN_P2SH_VERSION=5
     DEFINES   += COIN_NATIVE_SEGWIT_PREFIX=\"bc\"
     DEFINES   += COIN_COINID_SHORT=\"BTC\"
+    DEFINES   += BITCOIN_RECOVERY
 
     APPNAME = "Bitcoin Recovery"
 
diff --git a/src/ui/menu.c b/src/ui/menu.c
deleted file mode 100644
index e0d628c..0000000
--- a/src/ui/menu.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*****************************************************************************
- *   Ledger App Bitcoin.
- *   (c) 2025 Ledger SAS.
- *
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *****************************************************************************/
-
-#include "os.h"
-#include "ux.h"
-
-#include "../globals.h"
-#include "menu.h"
-
-#define BIP32_PUBKEY_VERSION_MAINNET 0x0488B21E
-#define BIP32_PUBKEY_VERSION_TESTNET 0x043587CF
-
-void ui_menu_main() {
-    if (BIP32_PUBKEY_VERSION == BIP32_PUBKEY_VERSION_MAINNET) {  // mainnet
-        ui_menu_main_flow_bitcoin();
-    } else if (BIP32_PUBKEY_VERSION == BIP32_PUBKEY_VERSION_TESTNET) {  // testnet
-        ui_menu_main_flow_bitcoin_testnet();
-    }
-}
diff --git a/src/ui/menu.h b/src/ui/menu.h
index 6c3568b..db8441e 100644
--- a/src/ui/menu.h
+++ b/src/ui/menu.h
@@ -4,18 +4,3 @@
  * Entry point function to show main menu (ready screen, version, about, quit).
  */
 void ui_menu_main(void);
-
-/**
- * Show about submenu (copyright, date).
- */
-void ui_menu_about(void);
-
-/**
- * Show main menu (ready screen, version, about, quit).
- */
-void ui_menu_main_flow_bitcoin(void);
-
-/**
- * Show main menu for Testnet (ready screen, version, about, quit).
- */
-void ui_menu_main_flow_bitcoin_testnet(void);
diff --git a/src/ui/menu_nbgl.c b/src/ui/menu_nbgl.c
index f233ceb..f249a35 100644
--- a/src/ui/menu_nbgl.c
+++ b/src/ui/menu_nbgl.c
@@ -33,26 +33,22 @@ static const nbgl_contentInfoList_t infoList = {
 
 extern void app_exit(void);
 
-void ui_menu_main_flow_bitcoin(void) {
-    nbgl_useCaseHomeAndSettings(APPNAME,
-                                &ICON_APP_HOME,
-                                NULL,
-                                INIT_HOME_PAGE,
-                                NULL,
-                                &infoList,
-                                NULL,
-                                app_exit);
-}
-
-void ui_menu_main_flow_bitcoin_testnet(void) {
+void ui_menu_main(void) {
     nbgl_useCaseHomeAndSettings(
+#if BIP44_COIN_TYPE == 1
         "Bitcoin Testnet",
+#else
+        APPNAME,
+#endif /* #if BIP44_COIN_TYPE == 1 */
         &ICON_APP_HOME,
-#ifdef SCREEN_SIZE_WALLET
-        "This app enables signing\ntransactions on all the Bitcoin\ntest networks.",
+#ifdef BITCOIN_RECOVERY
+        "This is a recovery tool.\nNot for day-to-day operations!",
+#elif BIP44_COIN_TYPE == 1 && defined(SCREEN_SIZE_WALLET)
+        "This app enables signing\ntransactions on all the Bitcoin\ntest "
+        "networks.",
 #else
         NULL,
-#endif
+#endif /* #ifdef BITCOIN_RECOVERY */
         INIT_HOME_PAGE,
         NULL,
         &infoList,