[FL-2315] USB Mode switch lock (#1036)

* usb mode switch lock
* lock_mutex removed
* Wait for session termination in rpc_cli, lock badusb and u2f if rpc session is opened

Co-authored-by: あく <alleteam@gmail.com>

applications/gpio/gpio_app_i.h

@@ -12,6 +12,7 @@
 #include <gui/modules/submenu.h>
 #include <notification/notification_messages.h>
 #include <gui/modules/variable_item_list.h>
+#include <gui/modules/widget.h>
 #include "views/gpio_test.h"
 #include "views/gpio_usb_uart.h"
 
@@ -20,6 +21,7 @@ struct GpioApp {
     NotificationApp* notifications;
     ViewDispatcher* view_dispatcher;
     SceneManager* scene_manager;
+    Widget* widget;
 
     VariableItemList* var_item_list;
     GpioTest* gpio_test;
@@ -32,4 +34,5 @@ typedef enum {
     GpioAppViewGpioTest,
     GpioAppViewUsbUart,
     GpioAppViewUsbUartCfg,
+    GpioAppViewUsbUartCloseRpc,
 } GpioAppView;