App and Service improvements (#106)

README.md

@@ -38,9 +38,9 @@ UI is created with [lvgl](https://github.com/lvgl/lvgl) which has lots of [widge
 Creating a touch-capable UI is [easy](https://docs.lvgl.io/9.0/get-started/quick-overview.html) and doesn't require your own render loop!
 
 ```C++
-static void onShow(tt::app::App app, lv_obj_t* parent) {
+static void onShow(tt::app::AppContext context, lv_obj_t* parent) {
     // Default toolbar with app name and close button
-    lv_obj_t* toolbar = tt::lvgl::toolbar_create(parent, app);
+    lv_obj_t* toolbar = tt::lvgl::toolbar_create(parent, context);
     lv_obj_align(toolbar, LV_ALIGN_TOP_MID, 0, 0);
     
     // Label widget
@@ -50,7 +50,7 @@ static void onShow(tt::app::App app, lv_obj_t* parent) {
     // Widgets are auto-removed from the parent when the app is closed
 }
 
-extern const tt::app::Manifest manifest = {
+extern const tt::app::AppManifest manifest = {
     .id = "HelloWorld",    // Used to identify and start an app
     .name = "Hello World", // Shown on the desktop and app's toolbar
     .onShow = onShow  // A minimal setup sets the onShow() function