[FL-1849] NFC and iButton gui fixes (#943)

* nfc: fix spaces between lines in delete and info scenes
* gui widget: add extern c
* ibutton: rework gui in info and delete scenes
* Loader, Desktop: fix debug apps and plugins start from cli, fix deadlock in archive

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

applications/gui/modules/widget.h

@@ -7,6 +7,10 @@
 
 #include "widget_elements/widget_element_i.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct Widget Widget;
 typedef struct WidgetElement WidgetElement;
 
@@ -139,3 +143,7 @@ void widget_add_frame_element(
     uint8_t width,
     uint8_t height,
     uint8_t radius);
+
+#ifdef __cplusplus
+}
+#endif