Remember last state for CC1101 external + other fixes

Reset to internal module if external is not found on all apps, not only in bruteforcer

applications/main/subghz/subghz_last_settings.h

@@ -10,6 +10,7 @@ typedef struct {
     int32_t preset;
     uint32_t frequency_analyzer_feedback_level;
     float frequency_analyzer_trigger;
+    bool external_module_enabled;
 } SubGhzLastSettings;
 
 SubGhzLastSettings* subghz_last_settings_alloc(void);