Merge develop into main (#313)

- Add app path get() functions to `TactilityC`
- Improved `Dispatcher` and `DispatcherThread`
- Improved `PubSub` (type safety)
- Created test for `DispatcherThread` and `PubSub`
- Save properties files on app exit (various apps) by posting it to the main dispatcher (fixes UI hanging briefly on app exit)
- Fixed bug with `SystemSettings` being read from the wrong file path.
- `loadPropertiesFile()` now uses `file::readLines()` instead of doing that manually
- Increased timer task stack size (required due to issues when reading a properties file for the very first time)
- General cleanup
- Created `EstimatedPower` driver that uses an ADC pin to measure voltage and estimate the battery charge that is left.
- Cleanup of T-Deck board (updated to new style)

Tactility/Private/Tactility/app/wificonnect/WifiConnect.h

@@ -19,9 +19,11 @@ class WifiConnect : public App {
         .onConnectSsidContext = nullptr
     };
     View view = View(&bindings, &state);
-    PubSub::SubscriptionHandle wifiSubscription;
+    PubSub<service::wifi::WifiEvent>::SubscriptionHandle wifiSubscription;
     bool view_enabled = false;
 
+    void onWifiEvent(service::wifi::WifiEvent event);
+
 public:
 
     WifiConnect();

Tactility/Private/Tactility/app/wifimanage/WifiManagePrivate.h

@@ -13,15 +13,15 @@ namespace tt::app::wifimanage {
 
 class WifiManage : public App {
 
-private:
-
-    PubSub::SubscriptionHandle wifiSubscription = nullptr;
+    PubSub<service::wifi::WifiEvent>::SubscriptionHandle wifiSubscription = nullptr;
     Mutex mutex;
     Bindings bindings = { };
     State state;
     View view = View(&bindings, &state);
     bool isViewEnabled = false;
 
+    void onWifiEvent(service::wifi::WifiEvent event);
+
 public:
 
     WifiManage();

Tactility/Private/Tactility/service/gui/GuiService.h

@@ -1,14 +1,13 @@
 #pragma once
 
+#include <Tactility/app/AppContext.h>
 #include <Tactility/MessageQueue.h>
 #include <Tactility/Mutex.h>
 #include <Tactility/PubSub.h>
 #include <Tactility/service/Service.h>
-
-#include "Tactility/app/AppContext.h"
+#include <Tactility/service/loader/Loader.h>
 
 #include <cstdio>
-
 #include <lvgl.h>
 
 namespace tt::service::gui {
@@ -23,7 +22,7 @@ class GuiService : public Service {
     // Thread and lock
     Thread* thread = nullptr;
     Mutex mutex = Mutex(Mutex::Type::Recursive);
-    PubSub::SubscriptionHandle loader_pubsub_subscription = nullptr;
+    PubSub<loader::LoaderEvent>::SubscriptionHandle loader_pubsub_subscription = nullptr;
 
     // Layers and Canvas
     lv_obj_t* appRootWidget = nullptr;
@@ -37,10 +36,10 @@ class GuiService : public Service {
 
     bool isStarted = false;
 
-    static void onLoaderMessage(const void* message, TT_UNUSED void* context);
-
     static int32_t guiMain();
 
+    void onLoaderEvent(loader::LoaderEvent event);
+
     lv_obj_t* createAppViews(lv_obj_t* parent);
 
     void redraw();