Refactored events (#621)

Event handling:

- Added unified event handling for application, system, and Wi‑Fi events.
- Updated all apps to reflect event handling changes

Wi-Fi:

- Refactored event handling from listener interface to task & event group.
- Added direct Wi‑Fi radio controls and improved event subscriptions.
- Wi‑Fi screens now refresh asynchronously and handle unavailable devices more gracefully.
- Enabled Wi‑Fi by default on in dts files, but radio on/off is still done by code. The main reason was reliable event subscription and consistent devicetree states.
- Improved Wi‑Fi shutdown cleanup and radio-state handling.

Other:
- Renamed the Kernel Display app to Display.

Modules/app-module/source/app_internal_loader.cpp

@@ -16,9 +16,9 @@ error_t api_load(AppLocation location, AppRuntime* out_runtime) {
     return ERROR_NONE;
 }
 
-int32_t api_run(AppRuntime runtime, uint32_t app_instance_id, int argc, char* argv[]) {
+int32_t api_run(AppRuntime runtime, uint32_t /*app_instance_id*/, int argc, char* argv[]) {
     auto entry = reinterpret_cast<AppMainFn>(runtime);
-    return entry(app_instance_id, argc, argv);
+    return entry(argc, argv);
 }
 
 void api_unload(AppRuntime /*unused*/) {