fix: missing field initializer build error

Author: j0tunn

src/app/data-model-provider/Context.h

@@ -31,9 +31,9 @@ namespace DataModel {
 /// as well as fetching current state (via actionContext)
 struct InteractionModelContext
 {
-    EventsGenerator * eventsGenerator;
-    ProviderChangeListener * dataModelChangeListener;
-    ActionContext * actionContext;
+    EventsGenerator * eventsGenerator                = nullptr;
+    ProviderChangeListener * dataModelChangeListener = nullptr;
+    ActionContext * actionContext                    = nullptr;
 };
 
 } // namespace DataModel

src/app/data-model-provider/Provider.h

@@ -118,7 +118,7 @@ class Provider : public ProviderMetadataTree
                                                             CommandHandler * handler) = 0;
 
 protected:
-    InteractionModelContext mContext = { nullptr };
+    InteractionModelContext mContext = {};
 };
 
 } // namespace DataModel