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/ElfApp.cpp

@@ -223,8 +223,8 @@ void setElfAppParameters(
 std::shared_ptr<App> createElfApp(const std::shared_ptr<AppManifest>& manifest) {
     TT_LOG_I(TAG, "createElfApp");
     assert(manifest != nullptr);
-    assert(manifest->location.isExternal());
-    return std::make_shared<ElfApp>(manifest->location.getPath());
+    assert(manifest->appLocation.isExternal());
+    return std::make_shared<ElfApp>(manifest->appLocation.getPath());
 }
 
 } // namespace