Updated the app to work with the nrf52DK Uart Precompiled Sample

[AllyTechEngineering]

The code as is will not connect (after you update the code to the current flutter version). I assume others have worked on this. The one key area is that the nrf52 code has two characteristics so you need to use the servicesWithCharacteristicsToDiscover to make it connect. I have not take care of the overflow for the persistentFooterButtons area. In the short term I made the font smaller.
Ran on my iPhone 14 Pro and you can see the screen shot.
Here is the main problem:

original code:
// _currentConnectionStream = flutterReactiveBle.connectToAdvertisingDevice(
// id: _foundBleUARTDevices[index].id,
// prescanDuration: Duration(seconds: 2),
// withServices: [_UART_UUID, _UART_RX, _UART_TX],
// // withServices: [_UART_UUID],
// );
Updated code - works:
_currentConnectionStream = flutterReactiveBle.connectToDevice(
id: _foundBleUARTDevices[index].id,
servicesWithCharacteristicsToDiscover: {_UART_UUID: [_UART_RX, _UART_TX]},
connectionTimeout: const Duration(seconds: 2),
);

I did not clone the work so not sure if someone else has fixed this? I can put in a link to my github if you would like.