Various improvements (#547)

- Fixed crash when returning to Setup app (from any of the steps)
- Fixed crash when returning to TimeDateSettings app (after locale selection)
- Fixed GuiService inconsistent behaviour: now always perform operations async (e.g. to show/hide apps). This fixes crashes in some onHide() calls where onHide() might be called before onShow() was called.
- Fix for incorrect WebServService path
- Remove CYD-4848S040C SD card functionality, but added a GPIO fix for releasing 3-wire SPI pin sharing.
- Fix for saving/loading settings for various apps

TactilityKernel/source/drivers/root.cpp

@@ -7,7 +7,7 @@
 
 extern "C" {
 
-bool root_is_model(const struct Device* device, const char* buffer) {
+bool root_is_model(const Device* device, const char* buffer) {
     auto* config = static_cast<const RootConfig*>(device->config);
     return strcmp(config->model, buffer) == 0;
 }