Services/HLE: Implement PrepareToCloseLibraryApplet and CloseLibraryApplet.

This allows LLE library applets (like swkbd) to properly close and return to the application instead of hanging.

There is still a bug in our rasterizer cache that may cause crashes some time after an applet is closed, but that is tangential to this change and should be tackled separately.

src/core/hle/service/apt/apt.cpp

@@ -552,6 +552,31 @@ void Module::Interface::CancelLibraryApplet(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_APT, "(STUBBED) called exiting={}", exiting);
 }
 
+void Module::Interface::PrepareToCloseLibraryApplet(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx, 0x25, 3, 0); // 0x002500C0
+    bool not_pause = rp.Pop<bool>();
+    bool exiting = rp.Pop<bool>();
+    bool jump_to_home = rp.Pop<bool>();
+
+    LOG_DEBUG(Service_APT, "called not_pause={} exiting={} jump_to_home={}", not_pause, exiting,
+              jump_to_home);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+    rb.Push(apt->applet_manager->PrepareToCloseLibraryApplet(not_pause, exiting, jump_to_home));
+}
+
+void Module::Interface::CloseLibraryApplet(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx, 0x28, 1, 4); // 0x00280044
+    u32 parameter_size = rp.Pop<u32>();
+    auto object = rp.PopGenericObject();
+    std::vector<u8> buffer = rp.PopStaticBuffer();
+
+    LOG_DEBUG(Service_APT, "called size={}", parameter_size);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+    rb.Push(apt->applet_manager->CloseLibraryApplet(std::move(object), std::move(buffer)));
+}
+
 void Module::Interface::SendCaptureBufferInfo(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx, 0x40, 1, 2); // 0x00400042
     u32 size = rp.Pop<u32>();