Route UI state persistence through adapter

src/legacy_preference_storage.cpp

@@ -12,9 +12,19 @@ void set_legacy_integer_preference(const char* key, int value)
     Settings::set(key, Serializer::Integer(value));
 }
 
-void save_legacy_boolean_preference(const char* key, bool value)
+void set_legacy_boolean_preference(const char* key, bool value)
 {
     Settings::set(key, Serializer::Boolean(value));
+}
+
+void set_legacy_descriptor_preference(const char* key, const Serializer::Descriptor& value)
+{
+    Settings::set(key, value);
+}
+
+void save_legacy_boolean_preference(const char* key, bool value)
+{
+    set_legacy_boolean_preference(key, value);
     Settings::save();
 }