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

Tactility/Source/settings/SystemSettings.cpp

@@ -80,6 +80,11 @@ bool saveSystemSettings(const SystemSettings& properties) {
     map["timeFormat24h"] = properties.timeFormat24h ? "true" : "false";
     map["dateFormat"] = properties.dateFormat;
 
+    if (!file::findOrCreateParentDirectory(file_path, 0755)) {
+        LOGGER.error("Failed to create parent dir for {}", file_path);
+        return false;
+    }
+
     if (!file::savePropertiesFile(file_path, map)) {
         LOGGER.error("Failed to save {}", file_path);
         return false;