export OrganizeButtons

telebot lib moved

Remove redundant type

Rely on interfaces rather than passing functions to constructors.
Update documentation.

picklist back button option and handler

Fix incorrect behaviour of the picklist in determining the sender's

language

Update tucnak/telebot to v3.

This is v0.2.6 with /v2 tag to be aligned with tbcomctl.v2

Keyboard receives a slice with buttons. This way we can preserve the

order.

added keyboard options

Ensuring all map operations protected by mutex