Merge develop into main (#343)

- Refactor `AppManifest`: add new fields and rename existing ones
- Parse and validate the manifest from an app that is being installed.
- Remove deprecated `scoped()` from `Lock`
- Create `Tactility/Paths.h`
- App loading at boot now properly parses the manifest files of external apps
- Properly lock both source and destination locations during app install
- Remove LVGL path variants from `AppPaths` and `ServicePaths`
- Removed `xPath` base classes for apps and services. There's now `AppPaths` and `ServicePaths`.
- Renamed app and service paths: "data" and "system" paths are now "user data" and "assets"

Tactility/Source/app/screenshot/Screenshot.cpp

@@ -48,7 +48,7 @@ public:
 /** Returns the app data if the app is active. Note that this could clash if the same app is started twice and a background thread is slow. */
 std::shared_ptr<ScreenshotApp> _Nullable optApp() {
     auto appContext = getCurrentAppContext();
-    if (appContext != nullptr && appContext->getManifest().id == manifest.id) {
+    if (appContext != nullptr && appContext->getManifest().appId == manifest.appId) {
         return std::static_pointer_cast<ScreenshotApp>(appContext->getApp());
     } else {
         return nullptr;
@@ -278,10 +278,10 @@ void ScreenshotApp::onShow(AppContext& appContext, lv_obj_t* parent) {
 }
 
 extern const AppManifest manifest = {
-    .id = "Screenshot",
-    .name = "Screenshot",
-    .icon = LV_SYMBOL_IMAGE,
-    .category = Category::System,
+    .appId = "Screenshot",
+    .appName = "Screenshot",
+    .appIcon = LV_SYMBOL_IMAGE,
+    .appCategory = Category::System,
     .createApp = create<ScreenshotApp>
 };