M5Stack Tab5 support (#449)

* **New Features**
  * Added support for M5Stack Tab5: integrated display (ILI9881C MIPI-DSI), touch, and SD card.

* **User Interface**
  * Changed toolbar label from "External Apps" to "Installed Apps."

* **Improvements**
  * Clarified boot log messages ("Init boot"/"Init boot failed") for better diagnostics.
  * Firmware build matrix and configuration updated to include the M5Stack Tab5 target.

Devices/m5stack-tab5/Source/devices/Ili9881cDisplay.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <EspLcdDisplayV2.h>
+#include <Tactility/RecursiveMutex.h>
+
+#include <esp_lcd_mipi_dsi.h>
+#include <esp_ldo_regulator.h>
+
+class Ili9881cDisplay final : public EspLcdDisplayV2 {
+
+    class NoLock final : public tt::Lock {
+        bool lock(TickType_t timeout) const override { return true; }
+        void unlock() const override { /* NO-OP */ }
+    };
+
+    esp_lcd_dsi_bus_handle_t mipiDsiBus = nullptr;
+    esp_ldo_channel_handle_t ldoChannel = nullptr;
+
+    bool createMipiDsiBus();
+
+protected:
+
+    bool createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) override;
+
+    esp_lcd_panel_dev_config_t createPanelConfig(std::shared_ptr<EspLcdConfiguration> espLcdConfiguration, gpio_num_t resetPin) override;
+
+    bool createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, const esp_lcd_panel_dev_config_t& panelConfig, esp_lcd_panel_handle_t& panelHandle) override;
+
+    bool useDsiPanel() const override { return true; }
+
+    lvgl_port_display_dsi_cfg_t getLvglPortDisplayDsiConfig(esp_lcd_panel_io_handle_t /*ioHandle*/, esp_lcd_panel_handle_t /*panelHandle*/) override;
+
+public:
+
+    Ili9881cDisplay(
+        const std::shared_ptr<EspLcdConfiguration>& configuration
+    ) : EspLcdDisplayV2(configuration, std::make_shared<NoLock>()) {}
+
+    ~Ili9881cDisplay() override;
+
+    std::string getName() const override { return "ILI9881C"; }
+
+    std::string getDescription() const override { return "ILI9881C MIPI-DSI display"; }
+};