Implement Serial Console app & more (#239)

- Implemented new app: Serial Console
- `Uart::writeString()`: fixed 2 mutex bugs
- `AlertDialog::start()` with default "OK" button added
- Created `tt::lvgl::defaultLockTime` for re-use
- Removed various usages of deprecated `lvgl::obj_set_style_no_padding()`
- Implemented `hal::uart::getNames()` to list all interface names

TactilityHeadless/Source/hal/gps/GpsDevice.cpp

@@ -101,7 +101,7 @@ int32_t GpsDevice::threadMain() {
 
         if (bytes_read > 0U) {
 
-            TT_LOG_I(TAG, "%s", buffer);
+            TT_LOG_D(TAG, "%s", buffer);
 
             switch (minmea_sentence_id((char*)buffer, false)) {
                 case MINMEA_SENTENCE_RMC: