BLE Spam refactor again to use scene manager

applications/external/ble_spam/ble_spam.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <gui/view_dispatcher.h>
+
+#include "scenes/_setup.h"
+
+enum {
+    ViewMain,
+};
+
+typedef struct {
+    ViewDispatcher* view_dispatcher;
+    SceneManager* scene_manager;
+} Ctx;