Merge develop into main (#327)

## New features
- Implemented support for app packaging in firmware and `tactility.py`: load `.app` files instead of `.elf` files. Install apps remotely or via `FileBrowser`.
- Ensure headless mode works: all services that require LVGL can deal with the absence of a display
- Service `onStart()` is now allowed to fail (return `bool` result)
- Added and improved various file-related helper functions

## Improvements
- Completely revamped the SystemInfo app UI
- Improved Calculator UI of internal and external variant
- Fix Chat UI and removed the emoji buttons for now
- Fix for toolbar bottom padding issue in all apps

## Fixes
- Fix for allowing recursive locking for certain SPI SD cards
& more

Boards/CYD-2432S032C/Source/devices/SdCard.cpp

@@ -15,7 +15,7 @@ std::shared_ptr<SdCardDevice> createSdCard() {
         GPIO_NUM_NC,
         GPIO_NUM_NC,
         SdCardDevice::MountBehaviour::AtBoot,
-        std::make_shared<tt::Mutex>(),
+        std::make_shared<tt::Mutex>(tt::Mutex::Type::Recursive),
         std::vector<gpio_num_t>(),
         SDCARD_SPI_HOST
     );