Fixes and improvements (#620)

- Standardized keyboard input using Unicode-based key codes across supported devices and the simulator. Keyboards don't emit `LV_KEY_*` anymore.
- Refactored lilygo encoder driver into a reusable GPIO rotary encoder driver (see `Drivers/gpio-encoder-module/`). Added more features to the config file.
- Improved LVGL keyboard device management, including duplicate prevention and reliable reconnects.
- LVGL file mutex now registers with lvgl start/stop
- Improved LVGL startup/shutdown stability and memory allocation reliability.
- Increased simulator LVGL memory capacity and improved USB device-class handling.

Modules/lvgl-module/CMakeLists.txt

@@ -94,6 +94,10 @@ tactility_add_module(lvgl-module
     INCLUDE_DIRS include/
     PRIV_INCLUDE_DIRS private/
     REQUIRES ${REQUIRES_LIST}
+    # lv_mem_custom.c provides lv_mem_init/lv_malloc_core/etc, which lvgl__lvgl's own lv_init.c/
+    # lv_mem.c call back into (LV_STDLIB_CUSTOM) - a reverse reference into this module that a
+    # normal single-pass static link can't resolve. See module.cmake's WHOLE_ARCHIVE comment.
+    WHOLE_ARCHIVE
 )
 
 tactility_get_module_name("lvgl-module" MODULE_NAME)