Keep сhat scroll position when leaving and re-entering it #471

[petrfalkovsky]

Resolves #471

Synopsis

Messenger Gapopa. Chat page. Scroll in chat.

To do: save scroll position when re-entering chat.

For example: open chat and scroll, after that go to any otherr page or a different chat, then go back to the chat and make sure that the scroll stays exactly the same as it was when leaving the chat.

Solution

Save the ID and offset of the top/bottom element in chat and reuse it. There should be no persist, since remembering the position is not required.

Checklist

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