Demo: amend Shortcuts demo to clarify that ImGuiInputFlags_RouteOverActive may be used with focused route. (#9004)

imgui_demo.cpp

diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index b88e7bf..7ab8205 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -7916,6 +7916,11 @@
             ImGui::CheckboxFlags("ImGuiInputFlags_Repeat", &route_options, ImGuiInputFlags_Repeat);
             ImGui::RadioButton("ImGuiInputFlags_RouteActive", &route_type, ImGuiInputFlags_RouteActive);
             ImGui::RadioButton("ImGuiInputFlags_RouteFocused (default)", &route_type, ImGuiInputFlags_RouteFocused);
+            ImGui::Indent();
+            ImGui::BeginDisabled(route_type != ImGuiInputFlags_RouteFocused);
+            ImGui::CheckboxFlags("ImGuiInputFlags_RouteOverActive##0", &route_options, ImGuiInputFlags_RouteOverActive);
+            ImGui::EndDisabled();
+            ImGui::Unindent();
             ImGui::RadioButton("ImGuiInputFlags_RouteGlobal", &route_type, ImGuiInputFlags_RouteGlobal);
             ImGui::Indent();
             ImGui::BeginDisabled(route_type != ImGuiInputFlags_RouteGlobal);