'dynamic' namespace refactor + sensitivity is a NumberSetting now

src/frontend/locale/langs.cpp

@@ -78,7 +78,7 @@ void langs::loadLocalesInfo(const fs::path& resdir, std::string& fallback) {
 
             std::string name;
             if (langInfo->type == dynamic::valtype::map) {
-                name = langInfo->value.map->getStr("name", "none");
+                name = std::get<dynamic::Map*>(langInfo->value)->getStr("name", "none");
             } else {
                 continue;
             }

src/frontend/menu/menu_settings.cpp

@@ -51,14 +51,14 @@ static void create_controls_panel(Engine* engine) {
 
     /* Camera sensitivity setting track bar */{
         panel->add(menus::create_label([=]() {
-            float s = engine->getSettings().camera.sensitivity;
+            float s = engine->getSettings().camera.sensitivity.get();
             return langs::get(L"Mouse Sensitivity", L"settings")+L": "+
                    util::to_wstring(s, 1);
         }));
 
         auto trackbar = std::make_shared<TrackBar>(0.1, 10.0, 2.0, 0.1, 4);
         trackbar->setSupplier([=]() {
-            return engine->getSettings().camera.sensitivity;
+            return engine->getSettings().camera.sensitivity.get();
         });
         trackbar->setConsumer([=](double value) {
             engine->getSettings().camera.sensitivity = value;