Don't cache IHostApplication::getName()

As it turns out there are only two or three functions where we can do
this. It also breaks logging, and this function will probably only be
called once anyways. More consistency is always better.

src/plugin/bridges/vst3-impls/plugin-proxy.cpp

@@ -323,6 +323,10 @@ tresult PLUGIN_API Vst3PluginProxyImpl::setComponentHandler(
     // this component handler
     component_handler = handler;
 
+    // Automatically converted smart pointers for when the plugin performs a
+    // callback later
+    host_application = host_context;
+
     std::optional<Vst3ComponentHandlerProxy::ConstructArgs>
         component_handler_proxy_args = std::nullopt;
     if (handler) {