Fix Graphics Backend option value (#2295)

* Graphics backend setting bugfix

* Better solution

src/dusk/ui/settings.cpp

@@ -220,6 +220,18 @@ AuroraBackend configured_backend() {
     return configuredBackend;
 }
 
+bool is_graphics_backend_restart_pending() {
+    return getSettings().backend.graphicsBackend.getValue() !=
+           prelaunch_state().initialGraphicsBackend;
+}
+
+Rml::String graphics_backend_display_name() {
+    if (is_graphics_backend_restart_pending()) {
+        return Rml::String{backend_name(configured_backend())};
+    }
+    return Rml::String{backend_name(aurora_get_backend())};
+}
+
 Rml::String configured_data_path_display_name() {
     const auto path = data::abbreviated_path_string(data::configured_data_path());
     if (path.empty()) {
@@ -602,12 +614,8 @@ SettingsWindow::SettingsWindow(bool prelaunch) : mPrelaunch(prelaunch) {
             leftPane.register_control(
                 leftPane.add_select_button({
                     .key = "Graphics Backend",
-                    .getValue = [] { return Rml::String{backend_name(aurora_get_backend())}; },
-                    .isModified =
-                        [] {
-                            return getSettings().backend.graphicsBackend.getValue() !=
-                                   prelaunch_state().initialGraphicsBackend;
-                        },
+                    .getValue = [] { return graphics_backend_display_name(); },
+                    .isModified = [] { return is_graphics_backend_restart_pending(); },
                 }),
                 rightPane, [](Pane& pane) {
                     const auto availableBackends = available_backends();