preferences: update preferences categories and dependencies

GitLab: #16
Change-Id: Ib02e4201db803ea81abb305e00e494d46e837ad1
diff --git a/GreenScreen/videoSubscriber.h b/GreenScreen/videoSubscriber.h
index b306fea..f23f02d 100644
--- a/GreenScreen/videoSubscriber.h
+++ b/GreenScreen/videoSubscriber.h
@@ -54,7 +54,10 @@
 class VideoSubscriber : public jami::Observer<AVFrame*>
 {
 public:
-    VideoSubscriber(const std::string& dataPath, const std::string& model, const std::string& backgroundImage, bool acc);
+    VideoSubscriber(const std::string& dataPath,
+                    const std::string& model,
+                    const std::string& backgroundImage,
+                    bool acc = false);
     ~VideoSubscriber();
 
     virtual void update(jami::Observable<AVFrame*>*, AVFrame* const&) override;
@@ -67,7 +70,7 @@
 
 private:
     // Observer pattern
-    Observable<AVFrame*>* observable_{};
+    Observable<AVFrame*>* observable_ {};
 
     // Data
     std::string path_;