Route dialog and window preferences through adapter

src/legacy_preference_storage.cpp

@@ -12,6 +12,11 @@ void set_legacy_integer_preference(const char* key, int value)
     Settings::set(key, Serializer::Integer(value));
 }
 
+void set_legacy_ivec4_preference(const char* key, const glm::ivec4& value)
+{
+    Settings::set(key, Serializer::IVec4(value));
+}
+
 void set_legacy_boolean_preference(const char* key, bool value)
 {
     Settings::set(key, Serializer::Boolean(value));
@@ -22,6 +27,11 @@ void set_legacy_descriptor_preference(const char* key, const Serializer::Descrip
     Settings::set(key, value);
 }
 
+void unset_legacy_preference(const char* key)
+{
+    Settings::unset(key);
+}
+
 void save_legacy_boolean_preference(const char* key, bool value)
 {
     set_legacy_boolean_preference(key, value);