LilyGo T-Deck keyboard support & display driver improvements (#19)

* LilyGo T-Deck keyboard support

* reverse logic

* docs and readability

* cleanup

* optimize driver buffer

* cleanup

docs/ideas.md

@@ -4,6 +4,9 @@
 - Replace FreeRTOS semaphore from `Loader` with internal `Mutex`
 - Create unit tests for `tactility-core` and `tactility` (PC-only for now)
 - Have a way to deinit LVGL drivers that are created from `HardwareConfig`
+- Thread is broken: `tt_thread_join()` always hangs because `tt_thread_cleanup_tcb_event()`
+is not automatically called. This is normally done by a hook in `FreeRTOSConfig.h`
+but that seems to not work with ESP32. I should investigate task cleanup hooks further.
  
 # Core Ideas
 - Make a HAL? It would mainly be there to support PC development. It's a lot of effort for supporting what's effectively a dev-only feature.
@@ -15,4 +18,5 @@
 - BadUSB
 - IR transceiver app
 - GPIO status viewer
-- BlueTooth keyboard app
+- BlueTooth keyboard app
+- Investigate CSI https://stevenmhernandez.github.io/ESP32-CSI-Tool/