Userland+Base: Add "ladyball" logo for the system :^)

Thanks to Katalin Kult for the artwork!

Userland/Applications/About/main.cpp

@@ -32,7 +32,7 @@ int main(int argc, char** argv)
 
     unveil(nullptr, nullptr);
 
-    auto app_icon = GUI::Icon::default_icon("ladybug");
-    GUI::AboutDialog::show("SerenityOS", nullptr, nullptr, app_icon.bitmap_for_size(32));
+    auto app_icon = GUI::Icon::default_icon("ladyball");
+    GUI::AboutDialog::show("SerenityOS", app_icon.bitmap_for_size(32), nullptr, app_icon.bitmap_for_size(16));
     return app->exec();
 }

Userland/Services/Taskbar/TaskbarWindow.cpp

@@ -68,7 +68,7 @@ TaskbarWindow::TaskbarWindow(NonnullRefPtr<GUI::Menu> start_menu)
     m_start_button->set_font(Gfx::FontDatabase::default_bold_font());
     m_start_button->set_icon_spacing(0);
     m_start_button->set_fixed_size(80, 22);
-    auto app_icon = GUI::Icon::default_icon("ladybug");
+    auto app_icon = GUI::Icon::default_icon("ladyball");
     m_start_button->set_icon(app_icon.bitmap_for_size(16));
     m_start_button->set_menu(m_start_menu);
 

Userland/Services/Taskbar/main.cpp

@@ -106,7 +106,7 @@ NonnullRefPtr<GUI::Menu> build_system_menu()
     const Vector<String> sorted_app_categories = discover_apps_and_categories();
     auto system_menu = GUI::Menu::construct("\xE2\x9A\xA1"); // HIGH VOLTAGE SIGN
 
-    system_menu->add_action(GUI::Action::create("About SerenityOS", Gfx::Bitmap::load_from_file("/res/icons/16x16/ladybug.png"), [](auto&) {
+    system_menu->add_action(GUI::Action::create("About SerenityOS", Gfx::Bitmap::load_from_file("/res/icons/16x16/ladyball.png"), [](auto&) {
         pid_t child_pid;
         const char* argv[] = { "/bin/About", nullptr };
         if ((errno = posix_spawn(&child_pid, "/bin/About", nullptr, nullptr, const_cast<char**>(argv), environ))) {