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

Tactility/Source/app/AppRegistration.cpp

@@ -20,12 +20,12 @@ void addApp(const AppManifest& manifest) {
 
     hash_mutex.lock();
 
-    if (!app_manifest_map.contains(manifest.id)) {
-        app_manifest_map[manifest.id] = std::make_shared<AppManifest>(manifest);
-    } else {
-        TT_LOG_E(TAG, "App id in use: %s", manifest.id.c_str());
+    if (app_manifest_map.contains(manifest.id)) {
+        TT_LOG_W(TAG, "Overwriting existing manifest for %s", manifest.id.c_str());
     }
 
+    app_manifest_map[manifest.id] = std::make_shared<AppManifest>(manifest);
+
     hash_mutex.unlock();
 }