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)

Boards/LilygoTdeck/Source/LilygoTdeck.cpp

@@ -1,24 +1,29 @@
-#include "Tactility/lvgl/LvglSync.h"
-#include "hal/TdeckDisplay.h"
-#include "hal/TdeckDisplayConstants.h"
-#include "hal/TdeckKeyboard.h"
-#include "hal/TdeckPower.h"
-#include "hal/TdeckSdCard.h"
-
 #include <Tactility/hal/Configuration.h>
+#include <Tactility/lvgl/LvglSync.h>
 
-#define TDECK_SPI_TRANSFER_SIZE_LIMIT (TDECK_LCD_HORIZONTAL_RESOLUTION * TDECK_LCD_SPI_TRANSFER_HEIGHT * (LV_COLOR_DEPTH / 8))
+#include "devices/Display.h"
+#include "devices/Power.h"
+#include "devices/Sdcard.h"
+#include "devices/TdeckKeyboard.h"
 
-bool tdeckInit();
+#define TDECK_SPI_TRANSFER_SIZE_LIMIT (320 * 240 * (LV_COLOR_DEPTH / 8))
+
+bool initBoot();
 
 using namespace tt::hal;
 
+static std::vector<std::shared_ptr<Device>> createDevices() {
+    return {
+        createPower(),
+        createDisplay(),
+        std::make_shared<TdeckKeyboard>(),
+        createSdCard()
+    };
+}
+
 extern const Configuration lilygo_tdeck = {
-    .initBoot = tdeckInit,
-    .createDisplay = createDisplay,
-    .createKeyboard = createKeyboard,
-    .sdcard = createTdeckSdCard(),
-    .power = tdeck_get_power,
+    .initBoot = initBoot,
+    .createDevices = createDevices,
     .i2c = {
         i2c::Configuration {
             .name = "Internal",