Configurable Threshold for scrollToBottom Button Visibility in v2

[intelryzen]

Hello,

First of all, thank you for implementing this open-source project. I’ve noticed that in your library the scrollToBottom button appears even when the screen is scrolled only slightly.
• Is there a parameter to adjust this threshold?
• Or do I need to create my own ScrollController and use its offset to implement this behavior myself?

Thank you!

[demchenkoalex]

hey! there is a huge PR #756 that changes related code, so as soon as it is merged I can take a look :)