[FL-2222] IR fixes (#994)

* Fix elements_multiline_text_aligned
* IR: fix delete menu
* IR: bold text on delete/saved
* IR: add safe back screen
* IR: don't clear text on rename
* Nfc,Infrared: update DialogEx usage

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

applications/irda/scene/irda_app_scene.h

@@ -89,6 +89,13 @@ private:
     std::vector<std::string> remote_names;
 };
 
+class IrdaAppSceneAskBack : public IrdaAppScene {
+public:
+    void on_enter(IrdaApp* app) final;
+    bool on_event(IrdaApp* app, IrdaAppEvent* event) final;
+    void on_exit(IrdaApp* app) final;
+};
+
 class IrdaAppSceneEdit : public IrdaAppScene {
 public:
     void on_enter(IrdaApp* app) final;