[UI] Eliminate mouse requirement for initial profile create dialogs

Enable keyboard navigation and accept Enter to complete profile creation

src/xenia/ui/imgui_drawer.cc

@@ -162,6 +162,7 @@ void ImGuiDrawer::Initialize() {
 
   auto& io = ImGui::GetIO();
   io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
+  io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
 
   const float font_size = std::max((float)cvars::font_size, 8.f);
   const float title_font_size = font_size + 6.f;