Some changes to InputOptions

[Cheedy]

Hello, I would like to start by saying that this feature is incredible, a great job.
I just failed to do the following points:

1. I tried to set keyboardAppearance: Brightness.dark
   but I didn't find the possibility in InputOptions

2. I would like to add a microphone icon next to sendButtonVisibilityMode in order to set up a voice system but I did not find the possibility in inputOptions

Maybe I'm wrong and its features already exist, tell me if that's the case

[demchenkoalex]

Hey! I am working on a complete redesign of the package at the moment, because it became a 🍝 and is hard to maintain. At the moment, it will be faster to use customBottomWidget param of the Chat and copy the Input code if you want and change it, or write your own Input.

[Cheedy]

thanks for the answer, I will take Input in the chat params